[clang-tools-extra] [NFC][clang-tidy] Add type annotations to check_clang_tidy (PR #133140)

[via cfe-commits]

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@@ -85,7 +86,7 @@ def check(self, file_check_suffix, input_text):
 
 
 class CheckRunner:
-    def __init__(self, args, extra_args):
+    def __init__(self, args: argparse.Namespace, extra_args: List[str]):
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EugeneZelenko wrote:

```suggestion
    def __init__(self, args: argparse.Namespace, extra_args: List[str]) -> None:
```

https://github.com/llvm/llvm-project/pull/133140