Update int128/docker-build-cache-config-action action to v1.39.0

Author: renovate[bot]

.github/workflows/reusable--build.yaml

@@ -35,7 +35,7 @@ jobs:
         with:
           images: ghcr.io/${{ github.repository }}
           flavor: ${{ inputs.flavor }}
-      - uses: int128/docker-build-cache-config-action@338206c80bf9eeb2b9694b7b4fc8c247c317e2a8 # v1.38.0
+      - uses: int128/docker-build-cache-config-action@b3744816a5ba1ad9885b634d530b35ca90ece622 # v1.39.0
         id: cache
         with:
           image: ghcr.io/${{ github.repository }}/cache