dockerfile name in yml

Author: sandeepgupta12

.github/workflows/ppc64le.yml

@@ -13,12 +13,28 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  linux-ppc64le-docker-image-build:
+    name: Build docker image for ppc64le
+    runs-on: linux.ppc64le
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Remove old untagged images (optional cleanup)
+        run: |
+          docker image prune -a -f
+      - name: Build Docker image for ppc64le
+        run: |
+          docker build -f .github/workflows/Dockerfile.ppc64le -t pytorch-ppc64le:ubi9.3 .
+
   linux-ubi-9-3-cpu-ppc64le-build:
 
     name: linux-ubi9-3-cpu-ppc64le
     uses: ./.github/workflows/_linux-build.yml
+    needs: linux-ppc64le-docker-image-build
     with:
       build-environment: linux-ppc64le-binary-manywheel
-      docker-image-name: pytorch/ubi9-ppc64le-builder:cpu-ppc64le-main
+      docker-image-name: pytorch-ppc64le:ubi9.3
       runner: linux.ppc64le            # Example runner