chore(deps): update docker/build-push-action action to v6 (#216)

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

Author: renovate[bot]

.github/workflows/publish.yaml

@@ -53,7 +53,7 @@ jobs:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name:  Build and push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         if: startsWith(github.ref, 'refs/tags/')
         with:
           builder: ${{ steps.buildx.outputs.name }}