Bump mypy from 0.961 to 0.971

[dependabot]

Bumps mypy from 0.961 to 0.971.

Commits

• 1f08cf4 Update version to 0.971
• 61c0064 Add back workaround to avoid confusing mypy.types and types in pyinfo (#13176)
• d8d900c Update version to 0.971+dev
• 72fa325 Update version to 0.970
• 2132036 Handle cwd correctly in pyinfo (#13161) (#13162)
• ee10d29 flush keepalives on operator assignment statements (#13144) (#13151)
• 88c1b85 [mypyc] Add LoadAddress op for PyFloat_Type & PyTuple_Type (#13078) (#13150)
• d06dcf0 [0.970 backport] add typing_extensions.NamedTuple (#13149)
• 9f99400 Fix crash overriding partial-type attribute with method (#12943)
• 49b4b3d Don't add match_args for dataclasses and named tuples with --python-versi...
• Additional commits viewable in compare view

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[Kludex]

I've added the ignore statements as the new mypy version throws those errors, but...

Is this really needed?

uvicorn/uvicorn/protocols/http/h11_impl.py

Lines 412 to 415 in 4d518b7

	if result is not None:
	msg = "ASGI callable should return None, but returned '%s'."
	self.logger.error(msg, result)
	self.transport.close()

@tomchristie Does uvicorn needs to check this? If the result is different than None, should we care? 🤔

[Kludex]

I've created an issue from the last comment.