chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/images.yaml

@@ -19,7 +19,7 @@ jobs:
           fi
           echo "push=${PUSH}" >> $GITHUB_OUTPUT
 
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: docker://quay.io/cilium/image-maker:e55375ca5ccaea76dc15a0666d4f57ccd9ab89de
         name: Register binfmt from multi-platform builds
         with:

.github/workflows/pr-checks.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Run static checks
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: docker://quay.io/cilium/image-maker:e55375ca5ccaea76dc15a0666d4f57ccd9ab89de
         name: Run make lint
         with: