chore(deps): bump the github-actions group with 2 updates (#1732)

Bumps the github-actions group with 2 updates: [actions/cache](https://github.com/actions/cache) and [actions/setup-python](https://github.com/actions/setup-python).


Updates `actions/cache` from 5.0.5 to 6.1.0
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@27d5ce7...55cc834)

Updates `actions/setup-python` from 6.2.0 to 6.3.0
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@a309ff8...ece7cb0)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 6.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/setup-python
  dependency-version: 6.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -46,7 +46,7 @@ jobs:
           version: "0.11.2"
           python-version: "3.13"
           enable-cache: true # zizmor: ignore[cache-poisoning] CI-only, no artifacts published
-      - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # zizmor: ignore[cache-poisoning]
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # zizmor: ignore[cache-poisoning]
         name: Cache mypy cache
         with:
           path: ./.mypy_cache

.github/workflows/package-availability-check.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies using pip