fix: narrow down Dockerfile drift detection

TICKET: VL-3710

Author: louib

.github/workflows/ci.yml

@@ -300,38 +300,38 @@ jobs:
         id: docker-test
         run: |
           echo "Testing Docker image bitgo/express:${{ github.sha }}"
-          
+
           CONTAINER_ID=$(docker run -d -p 3080:3080 bitgo/express:${{ github.sha }})
           echo "Started container: $CONTAINER_ID"
-          
+
           # Wait for the service to be ready with timeout
           echo "Waiting for service to be ready..."
-          
+
           for i in {1..30}; do
             if curl -f -s --max-time 5 http://localhost:3080/api/v2/ping > /dev/null 2>&1; then
               echo "✅ API health check passed"
               break
             fi
-            
+
             if [ $i -eq 30 ]; then
               echo "::error::API health check failed after 30 attempts"
               docker logs "$CONTAINER_ID"
               docker stop "$CONTAINER_ID"
               docker rm "$CONTAINER_ID"
               exit 1
             fi
-            
+
             echo "Waiting for API... (attempt $i/30)"
             sleep 2
           done
-          
+
           # Check container logs for errors
           docker logs "$CONTAINER_ID"
-          
+
           # Stop the container
           docker stop "$CONTAINER_ID"
           docker rm "$CONTAINER_ID"
-          
+
           echo "✅ Docker image tests passed"
 
   dockerfile-check:
@@ -363,8 +363,8 @@ jobs:
       - name: Check Dockerfile is up to date
         run: |
           yarn update-dockerfile
-          if ! git diff --quiet; then
+          if ! git diff --quiet -- . ':!yarn.lock'; then
             echo "Dockerfile is not up to date. Please run 'yarn update-dockerfile' and commit the changes."
-            git diff
+            git diff -- . ':!yarn.lock'
             exit 1
           fi