chore(deps): update docker/build-push-action action to v7.3.0

Author: renovate[bot]

.github/workflows/update-docker-images.yml

@@ -42,7 +42,7 @@ jobs:
           registry: ghcr.io
           username: ${{github.repository_owner}}
           password: ${{secrets.GITHUB_TOKEN}}
-      - uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7.2.0
+      - uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: test
           file: test/docker/${{matrix.dist}}/Dockerfile