Add locale.localize (#14970)

Author: guoci

stdlib/locale.pyi

@@ -153,6 +153,10 @@ if sys.version_info < (3, 12):
 def format_string(f: _str, val: Any, grouping: bool = False, monetary: bool = False) -> _str: ...
 def currency(val: float | Decimal, symbol: bool = True, grouping: bool = False, international: bool = False) -> _str: ...
 def delocalize(string: _str) -> _str: ...
+
+if sys.version_info >= (3, 10):
+    def localize(string: _str, grouping: bool = False, monetary: bool = False) -> _str: ...
+
 def atof(string: _str, func: Callable[[_str], float] = ...) -> float: ...
 def atoi(string: _str) -> int: ...
 def str(val: float) -> _str: ...