use Mapping instead of dict as it is invariant

Author: MarcoGorelli

pandas-stubs/core/strings.pyi

@@ -1,6 +1,7 @@
 # pyright: strict
 from collections.abc import (
     Callable,
+    Mapping,
     Sequence,
 )
 import re
@@ -166,7 +167,7 @@ class StringMethods(NoNewAttributesMixin, Generic[T, _TS, _TM, _TS2]):
         break_on_hyphens: bool | None = ...,
     ) -> T: ...
     def get_dummies(self, sep: str = ...) -> pd.DataFrame: ...
-    def translate(self, table: dict[int, int | str | None] | None) -> T: ...
+    def translate(self, table: Mapping[int, int | str | None] | None) -> T: ...
     def count(self, pat: str, flags: int = ...) -> Series[int]: ...
     def startswith(self, pat: str | tuple[str, ...], na: Any = ...) -> Series[bool]: ...
     def endswith(self, pat: str | tuple[str, ...], na: Any = ...) -> Series[bool]: ...