fix: move Self import to TYPE_CHECKING for Python 3.10 compat

Author: KRRT7

codeflash/code_utils/worktree_pool.py

@@ -6,12 +6,13 @@
 import shutil
 import stat
 from pathlib import Path
-from typing import TYPE_CHECKING, Any, Self
+from typing import TYPE_CHECKING, Any
 
 import anyio
 
 if TYPE_CHECKING:
     from collections.abc import Callable
+    from typing import Self
 
 from codeflash.cli_cmds.console import logger
 from codeflash.code_utils.git_utils import git_root_dir, mirror_path