Merge pull request #1997 from znc/dependabot/github_actions/docker/build-push-action-7

Bump docker/build-push-action from 6 to 7

.github/workflows/build.yml

@@ -159,7 +159,7 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-      - uses: docker/build-push-action@v6
+      - uses: docker/build-push-action@v7
         with:
           context: .
           push: ${{ github.repository == 'znc/znc' && github.event_name == 'push' }}