Use lowercase tuple where possible (#6170)

stubs/python-dateutil/dateutil/parser/__init__.pyi

@@ -1,5 +1,5 @@
 from datetime import datetime, tzinfo
-from typing import IO, Any, Mapping, Text, Tuple, Union
+from typing import IO, Any, Mapping, Text, Union
 
 from .isoparser import isoparse as isoparse, isoparser as isoparser
 
@@ -7,10 +7,10 @@ _FileOrStr = Union[bytes, Text, IO[str], IO[Any]]
 
 class parserinfo(object):
     JUMP: list[str]
-    WEEKDAYS: list[Tuple[str, str]]
-    MONTHS: list[Tuple[str, str]]
-    HMS: list[Tuple[str, str, str]]
-    AMPM: list[Tuple[str, str]]
+    WEEKDAYS: list[tuple[str, str]]
+    MONTHS: list[tuple[str, str]]
+    HMS: list[tuple[str, str, str]]
+    AMPM: list[tuple[str, str]]
     UTCZONE: list[str]
     PERTAIN: list[str]
     TZOFFSET: dict[str, int]

stubs/python-dateutil/dateutil/tz/tz.pyi

@@ -1,5 +1,5 @@
 import datetime
-from typing import IO, Any, Text, Tuple, Union
+from typing import IO, Any, Text, Union
 
 from ..relativedelta import relativedelta
 from ._common import _tzinfo as _tzinfo, enfold as enfold, tzname_in_python2 as tzname_in_python2, tzrangebase as tzrangebase
@@ -73,7 +73,7 @@ class tzrange(tzrangebase):
         start: relativedelta | None = ...,
         end: relativedelta | None = ...,
     ) -> None: ...
-    def transitions(self, year: int) -> Tuple[datetime.datetime, datetime.datetime]: ...
+    def transitions(self, year: int) -> tuple[datetime.datetime, datetime.datetime]: ...
     def __eq__(self, other): ...
 
 class tzstr(tzrange):