chore(deps): update github actions

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	digest	08c6903 -> 93cb6ef
jupyterlab/maintainer-tools	action	digest	d72f5cb -> 7a3e704

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[coderabbitai]

📝 Walkthrough

Walkthrough

Workflow files (build.yml, check-release.yml, ci.yml, prep-release.yml, publish-release.yml, update-integration-tests.yml) have been updated to point to newer commits for several GitHub Actions: actions/checkout, jupyterlab/maintainer-tools/.github/actions/base-setup, and where present check-links/update-snapshots. Commit hashes were changed (e.g., checkout → 93cb6efe..., base-setup → 7a3e704...). No control flow, step inputs, or exported/public interfaces were altered.

Pre-merge checks

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'chore(deps): update github actions' directly and accurately summarizes the main change: updating GitHub Actions dependencies across multiple workflow files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.56%. Comparing base (4eede54) to head (a1f63c6).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #70   +/-   ##
=======================================
  Coverage   69.56%   69.56%           
=======================================
  Files          13       13           
  Lines         253      253           
  Branches       28       28           
=======================================
  Hits          176      176           
  Misses         73       73           
  Partials        4        4           

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