fix: Remove some generated casts that aren't necessary with mypy v2

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This PR contains the following updates:

Update	Change
lockFileMaintenance	All locks refreshed

🔧 This Pull Request updates lock files to use the latest dependency versions.

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[dbanty]

@copilot can you update the code to get it working with mypy v2?

[Copilot]

@copilot can you update the code to get it working with mypy v2?

Done in commit 90afc56. Two changes were needed for mypy v2:

1. end_to_end_tests/test_end_to_end.py: Replaced mypy.api.run() with subprocess.run([sys.executable, "-m", "mypy", ...]). mypy v2 is compiled with mypyc (.so files), which causes an ImportError: module 'mypy.main' is not in sys.modules when called in-process from within a pytest run.

2. openapi_python_client/templates/literal_enum.py.jinja (+ 7 golden record files): Removed cast(Literal[...], value) from the generated check_* functions. mypy v2 now properly narrows the type of value to Literal[...] after an if value in set[Literal[...]] check, making the cast redundant (and flagging it as [redundant-cast]).

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