allow Any type in Mapping.get

[randolf-scholz]

No description provided.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

starlette (https://github.com/encode/starlette)
- tests/test_datastructures.py:171: note:     def get(self, str, /) -> str | None
+ tests/test_datastructures.py:171: note:     def get(self, Any, /) -> str | None
- tests/test_datastructures.py:171: note:     def get(self, str, str, /) -> str
+ tests/test_datastructures.py:171: note:     def get(self, Any, str, /) -> str
- tests/test_datastructures.py:171: note:     def [_T] get(self, str, _T, /) -> str | _T
+ tests/test_datastructures.py:171: note:     def [_T] get(self, Any, _T, /) -> str | _T
- tests/test_datastructures.py:287: note:     def get(self, str, /) -> str | None
+ tests/test_datastructures.py:287: note:     def get(self, Any, /) -> str | None
- tests/test_datastructures.py:287: note:     def get(self, str, str, /) -> str
+ tests/test_datastructures.py:287: note:     def get(self, Any, str, /) -> str
- tests/test_datastructures.py:287: note:     def [_T] get(self, str, _T, /) -> str | _T
+ tests/test_datastructures.py:287: note:     def [_T] get(self, Any, _T, /) -> str | _T
- tests/test_datastructures.py:371: note:     def get(self, str, /) -> UploadFile | str | None
+ tests/test_datastructures.py:371: note:     def get(self, Any, /) -> UploadFile | str | None
- tests/test_datastructures.py:371: note:     def get(self, str, UploadFile | str, /) -> UploadFile | str
+ tests/test_datastructures.py:371: note:     def get(self, Any, UploadFile | str, /) -> UploadFile | str
- tests/test_datastructures.py:371: note:     def [_T] get(self, str, _T, /) -> UploadFile | str | _T
+ tests/test_datastructures.py:371: note:     def [_T] get(self, Any, _T, /) -> UploadFile | str | _T

pydantic (https://github.com/pydantic/pydantic)
+ pydantic/_internal/_utils.py:204: error: Unused "type: ignore" comment  [unused-ignore]

steam.py (https://github.com/Gobot1234/steam.py)
- steam/ext/commands/utils.py:43: note:          def get(self, str, /) -> _VT | None
+ steam/ext/commands/utils.py:43: note:          def get(self, Any, /) -> _VT | None
- steam/ext/commands/utils.py:43: note:          def get(self, str, _VT, /) -> _VT
+ steam/ext/commands/utils.py:43: note:          def get(self, Any, _VT, /) -> _VT
- steam/ext/commands/utils.py:43: note:          def [_T] get(self, str, _T, /) -> _VT | _T
+ steam/ext/commands/utils.py:43: note:          def [_T] get(self, Any, _T, /) -> _VT | _T
+ steam/package.py:215: error: Unused "type: ignore" comment  [unused-ignore]
+ steam/package.py:216: error: Unused "type: ignore" comment  [unused-ignore]

operator (https://github.com/canonical/operator)
- ops/model.py:1016: note:          def get(self, str, /) -> Binding | None
+ ops/model.py:1016: note:          def get(self, Any, /) -> Binding | None
- ops/model.py:1016: note:          def get(self, str, Binding, /) -> Binding
+ ops/model.py:1016: note:          def get(self, Any, Binding, /) -> Binding
- ops/model.py:1016: note:          def [_T] get(self, str, _T, /) -> Binding | _T
+ ops/model.py:1016: note:          def [_T] get(self, Any, _T, /) -> Binding | _T

aiohttp (https://github.com/aio-libs/aiohttp)
+ aiohttp/web_app.py:188: error: Unused "type: ignore" comment  [unused-ignore]