Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx