chore(deps): update googleapis/librarian action to v0.42.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
googleapis/librarian	action	minor	v0.40.0 → v0.42.0

---

Release Notes

googleapis/librarian (googleapis/librarian)

v0.42.0

Compare Source

Features

• internal/librarian/ruby: support toys tasks in library declaration (#​7513) (c99d2c9)
• internal/librarian/swift: resolve dependency version from library declaration (#​7522) (5dfd571)

Bug Fixes

• internal/librarian/php: use library output in generate and postprocessing (#​7516) (681d25f)
• swift/publish: fix library detection for renamed folders (#​7518) (e9285a4)

v0.41.0

Compare Source

Features

• internal/librarian/php: populate library output on add (#​7494) (6db88be)
• internal/librarian/ruby: add ruby-cloud-renamed-from option (#​7500) (5cdfd77)
• internal/librarian/ruby: prepareMultiWrapper for multi-wrapper Gems (#​7483) (a325c53)
• internal/librarian/ruby: ruby-cloud-gem-name for multi-wrapper Gems (#​7486) (37e5b25)
• internal/librarian/ruby: support deleting output paths in library declaration (#​7506) (39fbb3f)
• internal/librarian/rust: batch unsupported any field errors (#​7479) (09b2729)
• sidekick/rust: support grpc_client option (#​7492) (45d06df)
• sidekick/swift: generate better README with links to monorepo (#​7520) (99a427e)
• sidekick/swift: propagate deprecated tags (#​7472) (2a98183)

Bug Fixes

• internal/librarian/python: flatten nested gapic_version paths (#​7501) (c57fa98)
• internal/librarian/rust: batch unsupported any field errors (#​7479) (#​7512) (bb4aa18)
• internal/librarian: update bulk release-please config for existing python libraries (#​7508) (e7edd83)
• internal/sidekick/rust: skip doc links for omitted methods and services (#​7485) (5eb5644)

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.