updated dockerfile

Author: sandeepgupta12

.github/workflows/ppc64le.yml

@@ -24,7 +24,7 @@ jobs:
         uses: docker/setup-buildx-action@v2
       - name: Build Docker image for ppc64le
         run: |
-          docker build -f .ci/docker/manywheel/Dockerfile_ppc64le -t pytorch/manylinuxppc64le-builder:cpu-ppc64le-main .
+          docker build -f .ci/docker/manywheel/Dockerfile_ppc64le -t manylinuxppc64le-builder .
 
   linux-manylinux-2_28-py3-cpu-ppc64le-build:
 
@@ -33,6 +33,6 @@ jobs:
     needs: linux-ppc64le-docker-image-build
     with:
       build-environment: linux-ppc64le-binary-manywheel
-      docker-image-name: pytorch/manylinuxppc64le-builder:cpu-ppc64le-main
+      docker-image-name: manylinuxppc64le-builder
       runner: ubuntu-24.04-ppc64le
     secrets: inherit