Fix false positives wrt. TextCalendar (#15661)

Author: Peilonrayz

stdlib/calendar.pyi

@@ -88,9 +88,9 @@ class Calendar:
     def itermonthdays4(self, year: int, month: int) -> Iterable[tuple[int, int, int, int]]: ...
 
 class TextCalendar(Calendar):
-    def prweek(self, theweek: int, width: int) -> None: ...
+    def prweek(self, theweek: Iterable[tuple[int, int]], width: int) -> None: ...
     def formatday(self, day: int, weekday: int, width: int) -> str: ...
-    def formatweek(self, theweek: int, width: int) -> str: ...
+    def formatweek(self, theweek: Iterable[tuple[int, int]], width: int) -> str: ...
     def formatweekday(self, day: int, width: int) -> str: ...
     def formatweekheader(self, width: int) -> str: ...
     def formatmonthname(self, theyear: int, themonth: int, width: int, withyear: bool = True) -> str: ...
@@ -145,7 +145,7 @@ c: TextCalendar
 
 def setfirstweekday(firstweekday: int) -> None: ...
 def format(cols: int, colwidth: int = 20, spacing: int = 6) -> str: ...
-def formatstring(cols: int, colwidth: int = 20, spacing: int = 6) -> str: ...
+def formatstring(cols: Iterable[str], colwidth: int = 20, spacing: int = 6) -> str: ...
 def timegm(tuple: tuple[int, ...] | struct_time) -> int: ...
 
 # Data attributes