Build(deps): Bump actions/checkout in the actions group (#103)

Bumps the actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 4.1.7 to 4.2.0
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@692973e...d632683)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: 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

@@ -21,7 +21,7 @@ jobs:
     if: github.repository == 'scientific-python/upload-nightly-action'
 
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
         # Don't rely on the action's path being in the current directory
         with:
           path: '_action_path'

.github/workflows/keep-alive.yml

@@ -18,7 +18,7 @@ jobs:
       group: ${{ github.workflow }}-${{ github.ref }}
 
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332  # v4.1.7
+    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
 
     - name: Create a minimal payload
       run: |