fix: resolve pytest warnings in test_git_tools.py

[ezyang]

Stack from ghstack (oldest at bottom):

• feat: add Chmod tool supporting a+x and a-x #200
• -> fix: resolve pytest warnings in test_git_tools.py #196

Fix these pytest warnings.

e57db7c  (Base revision)
4e3d96d  Remove @pytest.mark.asyncio decorator and convert asyncSetUp to sync setUp
2959325  Add asyncio import
31c6249  Implement setUp_async method using asyncio.run
ae6b763  Convert asyncTearDown to standard tearDown
6093c63  Fix async_setup to include git init command
2b14e4b  Convert test_git_log to use asyncio.run with inner async function
fe9708f  Convert test_git_diff to use asyncio.run with inner async function
a83cf90  Convert test_git_show to use asyncio.run with inner async function
ceac4c3  Convert test_git_blame to use asyncio.run with inner async function
f177a40  Convert test_invalid_path to use asyncio.run with inner async function
65d5b29  Convert test_command_failure to use asyncio.run with inner async function
60d29cd  Fix mocking in test_invalid_path to use correct import paths
5bce016  Auto-commit format changes
HEAD     Auto-commit lint changes

codemcp-id: 206-fix-resolve-pytest-warnings-in-test-git-tools-py