Update docker/build-push-action action to v6.18.0 (#8)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/multi-build.yaml

@@ -126,7 +126,7 @@ jobs:
         # The cache-from and cache-to options are used to enable caching for the build process.
         # The cache is stored in GitHub Actions cache and is scoped to the repository, branch, and platform.
         id: build
-        uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6.16.0
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
         env:
           DOCKER_BUILDKIT: 1
         with: