chore(deps): update docker/build-push-action action to v6.12.0 (#262)

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

Author: renovate[bot]

.github/workflows/deploy-docker-image.yml

@@ -66,7 +66,7 @@ jobs:
       # - 'latest' for successful builds on the main branch.
       # - '<short_branch_name>' pushes to non-main branches.
       - name: Build and push Docker image
-        uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6.11.0
+        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
         with:
           context: .
           push: true