Enhance CORS test setup by adding project root to sys.path

- Introduced project root path to `sys.path` in `test_cors.py` to ensure proper module resolution during tests.
- Updated imports to maintain compatibility with the new project structure.

Author: NiveditJain

state-manager/tests/unit/config/test_cors.py

@@ -1,5 +1,10 @@
 from unittest.mock import patch
 import os
+import pathlib
+import sys
+
+project_root = str(pathlib.Path(__file__).parent.parent.parent.parent)
+sys.path.insert(0, project_root)
 
 from app.config.cors import get_cors_origins, get_cors_config