Fix requirements file path in CI/CD workflow

Author: Twiddllo

.github/workflows/ci-cd.yml

@@ -91,7 +91,7 @@ jobs:
     - name: Security scan for Python dependencies
       uses: pyupio/safety-action@v1
       with:
-        requirements-file: backend/requirements.txt
+        requirements-file-path: backend/requirements.txt
 
     - name: Secret scanning
       uses: trufflesecurity/truffleHog@main