Bump actions/checkout from 4.2.0 to 4.2.1 (#73233)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@d632683...eef6144)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/ci-pipeline.yml

@@ -61,7 +61,7 @@ jobs:
       pull-requests: write
     needs: get-containers
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
         name: Checkout Repository
         with:
           ref: ${{ github.event.pull_request.head.ref }}
@@ -102,7 +102,7 @@ jobs:
       matrix:
         container: ${{ fromJSON(needs.get-containers.outputs.containers) }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
         name: Checkout Repository
         with:
           # Full history is not required anymore

.github/workflows/markdown-linter.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Install mardownlint
         run: npm install -g markdownlint-cli@0.33.0
       - name: Checkout project
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
       - name: Execute markdownlint
         env:
           DIFF_URL: "${{github.event.pull_request.diff_url}}"