Vendored types for a very minimal subset of the CPython stdlib

Copied originally from https://github.com/astral-sh/ruff/tree/main/crates/ty_vendored but only parts of https://github.com/python/typeshed/blob/main/stdlib/builtins.pyi are kept, since those are the only functions supported from the stdlib.

The vendor/typeshed directory is updated by calling make update-typeshed which calls the update.py script in this directory.

See https://github.com/pydantic/monty for more information on the project.

THEREFORE FILES IN THE vendor/typeshed DIRECTORY SHOULD NOT BE EDITED MANUALLY.