fix: update the image repo to be pushed into ECR (#29444)

.github/workflows/publish-ci-docker-image.yml

@@ -13,12 +13,23 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Build and Push docker image
-        env:
-          DOCKERHUB_PASSWORD: ${{ secrets.DOCKERHUB_PASSWORD }}
-          DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
-        run : |
-          docker build -t openedx/edx-platform-ci-runner:latest -f scripts/ci-runner.Dockerfile .
-          make docker_auth
-          docker push 'openedx/edx-platform-ci-runner:latest'
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v1
+        with:
+          aws-access-key-id: ${{ secrets.TOOLS_EDX_ECR_USER_AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.TOOLS_EDX_ECR_USER_AWS_SECRET_ACCESS_KEY }}
+          aws-region: us-east-1
+
+      - name: Log in to ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v1
+
+      - name: Build, tag, and push image to Amazon ECR
+        env:
+          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+          ECR_REPOSITORY: actions-runner
+          IMAGE_TAG: latest
+        run: |
+          docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG -f scripts/ci-runner.Dockerfile .
+          docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG