Update playwright-deps feature

[eraserix]

• Add note recommending to use Playwright server mode if performance of built-in UI is not satisfactory
• Sync Playwright browser dependencies with upstream.
  • Drop Debian 11 support
  • Bump feature to version to 2
• Drop legacy --add-host directives from devcontainer.json and all test scenarios
• Update most test scenarios to Debian 13 and Ubuntu 26.04 and drop Debian 11 and Ubuntu 22.04

[eraserix]

Build fail example for readme update check:

https://github.com/postfinance/devcontainer-features/actions/runs/29839731495

[Copilot]

Pull request overview

This PR updates the playwright-deps devcontainer feature (docs + dependency lists) and refreshes the repo’s CI/devcontainer and feature test coverage to align with newer base images and OS versions, including removing legacy --add-host directives and dropping older distro targets.

Changes:

• Bump playwright-deps feature version to 2.0.0, sync browser dependency packages with upstream, and add documentation for using Playwright UI server mode.
• Modernize test scenarios/images (move to Debian 12/13 and Ubuntu 24.04/26.04 in many places) and remove legacy --add-host=host.docker.internal:host-gateway options.
• Enhance CI by adding a README-consistency job and scheduled runs, and update the development container image + features.

Reviewed changes

Copilot reviewed 69 out of 69 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
features/test/zig/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/zig/scenarios.json	Remove legacy --add-host build option.
features/test/vault-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/vault-cli/scenarios.json	Remove legacy --add-host build option.
features/test/timezone/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/timezone/scenarios.json	Remove legacy --add-host build option.
features/test/terraform/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/terraform/scenarios.json	Remove legacy --add-host build option.
features/test/system-packages/test-images.json	Refresh test base image list and add Ubuntu 26.04 coverage.
features/test/system-packages/scenarios.json	Remove legacy --add-host build option (and reformat JSON).
features/test/sonar-scanner-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/sonar-scanner-cli/scenarios.json	Remove legacy --add-host build option and normalize formatting.
features/test/rust/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/rust/scenarios.json	Remove legacy --add-host build option and normalize formatting.
features/test/python/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/python/scenarios.json	Remove legacy --add-host build option.
features/test/playwright-deps/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/playwright-deps/scenarios.json	Remove legacy --add-host build option.
features/test/opencode/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/opencode/scenarios.json	Remove legacy --add-host build option.
features/test/nvidia-cuda/scenarios.json	Remove legacy --add-host build option from scenarios.
features/test/npm-packages/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/npm-packages/scenarios.json	Remove legacy --add-host build option.
features/test/node/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/node/scenarios.json	Remove legacy --add-host build option and normalize formatting.
features/test/nginx/scenarios.json	Remove legacy --add-host build option.
features/test/mingw/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/mingw/scenarios.json	Remove legacy --add-host build option.
features/test/make/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/make/scenarios.json	Remove legacy --add-host build option.
features/test/locale/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/locale/scenarios.json	Remove legacy --add-host build option.
features/test/kubectl/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/kubectl/scenarios.json	Remove legacy --add-host build option.
features/test/jfrog-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/jfrog-cli/scenarios.json	Remove legacy --add-host build option.
features/test/instant-client/scenarios.json	Remove legacy --add-host build option.
features/test/goreleaser/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/goreleaser/scenarios.json	Remove legacy --add-host build option.
features/test/gonovate/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/gonovate/scenarios.json	Remove legacy --add-host build option.
features/test/go/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/go/scenarios.json	Remove legacy --add-host build option.
features/test/gitlab-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/gitlab-cli/scenarios.json	Remove legacy --add-host build option.
features/test/github-copilot-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/github-copilot-cli/scenarios.json	Remove legacy --add-host build option.
features/test/github-cli/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/github-cli/scenarios.json	Remove legacy --add-host build option.
features/test/git-lfs/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/git-lfs/scenarios.json	Remove legacy --add-host build option.
features/test/eclipse-deps/scenarios.json	Remove legacy --add-host build option.
features/test/dotnet/test-images.json	Refresh test base image list and add Ubuntu 26.04 coverage.
features/test/dotnet/scenarios.json	Remove legacy --add-host build option.
features/test/docker-out/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/docker-out/scenarios.json	Remove legacy --add-host build option.
features/test/cypress-deps/scenarios.json	Remove legacy --add-host build option.
features/test/claude-code/test-images.json	Update test base images to newer Debian/Ubuntu tags.
features/test/claude-code/scenarios.json	Remove legacy --add-host build option.
features/test/build-essential/test-images.json	Update test base images to newer Debian/Ubuntu tags (and drop older Ubuntu).
features/test/build-essential/scenarios.json	Remove legacy --add-host build option.
features/test/browsers/scenarios.json	Remove legacy --add-host build option.
features/src/playwright-deps/README.md	Bump usage example to 2.0.0 and add UI server-mode guidance.
features/src/playwright-deps/NOTES.md	Add UI server-mode guidance (mirrors README).
features/src/playwright-deps/installer.go	Sync Playwright browser dependency package lists (incl. new Ubuntu 26 mapping).
features/src/playwright-deps/devcontainer-feature.json	Bump feature version to 2.0.0.
.github/workflows/ci.yml	Add scheduled CI + README verification job; adjust matrix behavior and versions.
.devcontainer/Dockerfile	Update devcontainer base image.
.devcontainer/devcontainer.json	Remove legacy --add-host and update dev features/versions.