Fix unsupported JDK distribution in workflows

[Copilot]

Description

Replace the unsupported adopt distribution with temurin for actions/setup-java@v6 in every workflow. This resolves the failed setup step: No supported distribution was found for input adopt.

Related Issue

N/A

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Code refactoring
• Performance improvement
• Build/CI improvement

Changes Made

• Update the pull-request workflow JDK distribution.
• Update the main workflow JDK distribution.
• Update the publishing workflow JDK distribution.

Platforms Tested

• Android
• iOS
• Desktop (JVM)
• JavaScript
• WebAssembly

Screenshots / Videos

Not applicable.

Testing

Manual Testing

• Tested on physical device/emulator
• Tested different screen sizes
• Tested light and dark themes (if applicable)
• Tested enabled/disabled states (if applicable)

Automated Testing

• Added/updated unit tests
• Added/updated integration tests
• All existing tests pass

Workflow configuration was checked for remaining adopt entries; none remain. Secret scanning and CodeQL found no alerts.

Checklist

• My code follows the project's code style guidelines
• I have performed a self-review of my code
• I have commented my code where necessary, particularly in complex areas
• I have updated the documentation (README, KDoc, etc.) if needed
• My changes generate no new warnings or errors
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes
• I have checked that my changes work across all relevant platforms
• I have updated CLAUDE.md if architectural changes were made

Breaking Changes

Impact: None.

Migration Guide: Not applicable.

Additional Notes

The original failure occurred before Gradle ran, during JDK setup.