Update docker-image.yml

Author: rohittp0

.github/workflows/docker-image.yml

@@ -15,6 +15,9 @@ jobs:
   build-and-push:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        
       - name: Login to Docker Registry
         uses: docker/login-action@v3
         with: