deleter: handle files (commaai#24023)

Author: adeebshihadeh

selfdrive/loggerd/deleter.py

@@ -28,7 +28,10 @@ def deleter_thread(exit_event):
 
         try:
           cloudlog.info(f"deleting {delete_path}")
-          shutil.rmtree(delete_path)
+          if os.path.isfile(delete_path):
+            os.remove(delete_path)
+          else:
+            shutil.rmtree(delete_path)
           break
         except OSError:
           cloudlog.exception(f"issue deleting {delete_path}")