Fix minimal tag suffix in docker_push

Author: lovasoa

.github/workflows/ci.yml

@@ -212,7 +212,7 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY_IMAGE }}
-          flavor: suffix=${{ matrix.variant == 'minimal' && '' || format('-{0}', matrix.variant) }}
+          flavor: suffix=${{ matrix.variant != 'minimal' && format('-{0}', matrix.variant) || '' }}
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with: