Update GitHub Actions in .github/workflows/containers.yml to use pinned hashes (#6)

Author: skylenet

.github/workflows/containers.yml

@@ -51,11 +51,11 @@ jobs:
         component: [backend, frontend]
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5
+        uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
         with:
           images: |
             ethpandaops/lab
@@ -69,7 +69,7 @@ jobs:
             latest=false
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3
+        uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
 
       - name: Login to DockerHub
         # Only login if:
@@ -78,13 +78,13 @@ jobs:
         if: |
           github.event_name != 'pull_request' ||
           (needs.check-pr.outputs.is_authorized == 'true' && github.event.pull_request.head.repo.full_name == github.repository)
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
+        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5.4.0
         with:
           context: ./${{ matrix.component }}
           # Only push if: