Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/docker-build.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       # Set up BuildKit Docker container builder to be able to build
       # multi-platform images and export cache