Actions(deps): Bump actions/checkout from 4.2.0 to 4.2.1

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>

.github/workflows/clang-format.yml

@@ -22,7 +22,7 @@ jobs:
       CLANG_MAJOR_VERSION: 18
     steps:
 
-    - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
+    - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
 
     - name: Add Clang/LLVM repositories
       run: |-

.github/workflows/linux.yml

@@ -54,7 +54,7 @@ jobs:
               clang-${{ matrix.clang_major_version }}
 
       - name: Checkout Git branch
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938  # v4.2.0
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871  # v4.2.1
 
       - name: 'Build'
         env: