type stubs: A consistent type for `Token.value`

The Token's value is described as being a in the attribute list: 460a221923/lark-stubs/lexer.pyi (L84) and as `Any` in `__init__` parameters:  460a221923/lark-stubs/lexer.pyi (L91)

Yet one of the recipes, [Use a transformer to parse integer tokens](https://github.com/lark-parser/lark/blob/master/docs/recipes.md#use-a-transformer-to-parse-integer-tokens), recommends to set it to other types. So IIUC, `Any` is the correct one.

lark-stubs/lexer.pyi

@@ -81,7 +81,7 @@ class TerminalDef:
 class Token(str):
     type: str
     pos_in_stream: int
-    value: str
+    value: Any
     line: int
     column: int
     end_line: int
@@ -91,11 +91,11 @@ class Token(str):
     def __init__(self, type_: str, value: Any, pos_in_stream: int = None, line: int = None, column: int = None, end_line: int = None, end_column: int = None, end_pos: int = None):
         ...
 
-    def update(self, type_: Optional[str] = None, value: Optional[str] = None) -> Token:
+    def update(self, type_: Optional[str] = None, value: Optional[Any] = None) -> Token:
         ...
 
     @classmethod
-    def new_borrow_pos(cls: Type[_T], type_: str, value: str, borrow_t: Token) -> _T:
+    def new_borrow_pos(cls: Type[_T], type_: str, value: Any, borrow_t: Token) -> _T:
         ...