chore(deps): update docker/build-push-action digest to 67a2d40 (#272)

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

.github/workflows/docker-publish.yml

@@ -55,7 +55,7 @@ jobs:
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
-        uses: docker/build-push-action@31ca4e5d51253d7e4a2317bfe74699cbe3a398a9
+        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}