Fix typehints?

Signed-off-by: Václav Valíček <valicek1994@gmail.com>

repo_cloner/lib/repo_tool.py

@@ -3,6 +3,7 @@ from git.exc import NoSuchPathError, InvalidGitRepositoryError
 from git import RemoteProgress
 import logging
 import time
+from typing import Union, Optional
 
 log = logging.getLogger("rc.repo")
 
@@ -51,9 +52,9 @@ class GitRemoteProgress(RemoteProgress):
 	def update(
 			self,
 			op_code: int,
-			cur_count: str | float,
-			max_count: str | float | None = None,
-			message: str | None = "",
+			cur_count: Union[float, str],
+			max_count: Optional[float, str] = None,
+			message: Optional[str] = "",
 	) -> None:
 		# Do i need to update?
 		# -> begin : YES