style(types): use new bracex static typing support (#887)

* style(types): use new bracex static typing support

* style(types): add a bit more basic typing

* style(types): globally ignore ghapi

* style(types): include a bit more in the global ignores

* fix(types): line invalid on Python 3.6

* fix: require typing_extensions 3.10

bin/inspect_all_known_projects.py

@@ -7,7 +7,7 @@ from typing import Iterator
 
 import click
 import yaml
-from ghapi.core import GhApi, HTTP404NotFoundError  # type: ignore[import]
+from ghapi.core import GhApi, HTTP404NotFoundError
 from rich import print
 
 from cibuildwheel.projectfiles import Analyzer