clan-vm-manager: prepend local clan-cli to python path

pkgs/clan-vm-manager/bin/clan-vm-manager

@@ -1,10 +1,11 @@
 #!/usr/bin/env python3
-import os
 import sys
+from pathlib import Path
 
-sys.path.insert(
-    0, os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
-)
+module_path = Path(__file__).parent.parent.absolute()
+
+sys.path.insert(0, str(module_path))
+sys.path.insert(0, str(module_path.parent / "clan_cli"))
 
 from clan_vm_manager import main  # NOQA