py(lint[svn_remote_repo_single_commit_post_init]) Fix typings for mypy 1.16

Run uv run mypy .
src/libvcs/pytest_plugin.py:819: error: Argument "remote_repo_post_init" to "__call__" of "CreateRepoPytestFixtureFn" has incompatible type "Callable[[Path], None]"; expected "CreateRepoPostInitFn | None"  [arg-type]
Found 1 error in 1 file (checked 51 source files)

See also: https://mypy.readthedocs.io/en/stable/changelog.html#mypy-1-16

Author: tony

src/libvcs/pytest_plugin.py

@@ -493,7 +493,10 @@ def _create_svn_remote_repo(
     return remote_repo_path
 
 
-def svn_remote_repo_single_commit_post_init(remote_repo_path: pathlib.Path) -> None:
+def svn_remote_repo_single_commit_post_init(
+    remote_repo_path: pathlib.Path,
+    env: _ENV | None = None,
+) -> None:
     """Post-initialization: Create a test SVN repo with a single commit."""
     assert remote_repo_path.exists()
     repo_dumpfile = pathlib.Path(__file__).parent / "data" / "repotest.dump"