pythongh-145194: Fix typing in re tokenizer example (pythonGH-145198)

(cherry picked from commit bd7352d8071dc00531f2c527977602729f2d3ec6)

Co-authored-by: Vikash Kumar <163628932+Vikash-Kumar-23@users.noreply.github.com>

Author: Vikash-Kumar-23

Doc/library/re.rst

@@ -1880,7 +1880,7 @@ successive matches::
 
     class Token(NamedTuple):
         type: str
-        value: str
+        value: int | float | str
         line: int
         column: int