Update build.yml

Author: mayeut

.github/workflows/build.yml

@@ -92,8 +92,8 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Login to Quay.io Container Registry
-        if: github.event_name == 'push' && github.ref == 'refs/heads/main' && github.repository == 'pypa/manylinux'
+      - name: Login to GitHub Container Registry
+        if: github.event_name == 'push' && github.ref == 'refs/heads/ghcr-cache' && github.repository == 'pypa/manylinux'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io