Fixes script writing

Author: tgaspar

Dockerfile

@@ -53,7 +53,7 @@ RUN npm install
 RUN npm run compile
 
 # Create test script
-RUN cat > /test_extension.sh << 'EOF'
+RUN cat > /test_extension.sh << 'EOF' && chmod +x /test_extension.sh
 #!/bin/bash
 set -e
 
@@ -198,9 +198,5 @@ echo ""
 echo "Next: Test ctrl+click navigation in VSCode"
 echo "=========================================="
 
-EOF
-
-RUN chmod +x /test_extension.sh
-
 # Set the entrypoint
 ENTRYPOINT ["/test_extension.sh"]