Enhance PR workflow with Quay.io integration

Added steps to log in to Quay.io, run sanity checks, and push the Docker image.

Signed-off-by: Dushyant Behl <dushyantbehl@users.noreply.github.com>

Author: dushyantbehl

.github/workflows/pr-command.yaml

@@ -54,9 +54,27 @@ jobs:
       - name: Build NVCR Image
         run: |
           docker build \
-            -t fms-hf-tuning:pr-${{ github.event.issue.number }}-nvcr \
+            -t ${{ vars.QUAY_REPOSITORY }}fms-hf-tuning:pr-${{ github.event.issue.number }}-nvcr \
             -f build/nvcr.Dockerfile .
 
+      - name: Login to Quay.io
+        uses: docker/login-action@v3
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_USERNAME }}
+          password: ${{ secrets.QUAY_ROBOT_TOKEN }}
+
+      - name: Run basic sanity checks/tests on the new image before pushing
+        run: |
+            echo 'check if accelerate is installed and in the PATH'
+            IMAGE_NAME=${{ vars.QUAY_REPOSITORY }}fms-hf-tuning:main-nvcr-latest
+            docker run --rm -it --entrypoint which "$IMAGE_NAME" accelerate
+            echo 'checks done'
+
+      - name: Push docker image
+        run: |
+            docker push ${{ vars.QUAY_REPOSITORY }}fms-hf-tuning:pr-${{ github.event.issue.number }}-nvcr
+
       - name: Comment build result
         if: always()
         uses: actions/github-script@v7