ci: Fix nogil base build

Author: enwask

.github/workflows/docker-bases.yml

@@ -64,7 +64,6 @@ jobs:
 
       - name: Build free-threaded Python base
         uses: docker/build-push-action@v6
-        if: ${{ matrix.disable-gil }}
         with:
           context: .
           file: "./docker/Dockerfile.nogil"