fix: reduce the number of platforms

Author: ed382

.github/workflows/image.yaml

@@ -111,7 +111,7 @@ jobs:
         uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6.13.0
         with:
           context: .
-          platforms: linux/amd64,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
+          platforms: linux/amd64,linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           build-args: |
             BASE_IMAGE=${{ matrix.variant }}