Update actions/checkout action to v4.2.1

Author: renovate[bot]

.github/workflows/release-notes.yml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout the requested branch
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
       - name: Fetch all tags and branches
         run: git fetch --prune --unshallow
       - name: Cache Tools