An attempt to fix .drone.yml, deleted python-security stage

.drone.yml

@@ -22,13 +22,6 @@ steps:
       - npm ci --silent
       - npm run lint || echo "ESLint warnings found"
 
-  - name: python-security
-    image: python:3.11-slim
-    commands:
-      - cd backend
-      - pip install safety
-      - safety check --file=requirements.txt --exit-zero || echo "Security warnings found"
-
   - name: frontend-security
     image: node:20-alpine
     commands: