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

Author: renovate[bot]

.github/workflows/docker.yml

@@ -103,7 +103,7 @@ jobs:
             type=raw,value=${{ steps.version.outputs.pg_major }},enable=${{ steps.should-release.outputs.result }}
 
       - name: Build and push image
-        uses: docker/build-push-action@v6.11.0
+        uses: docker/build-push-action@v6.12.0
         with:
           context: .
           platforms: linux/amd64,linux/arm64