Always use _typeshed.Self, where applicable (#6880)

* Always use `_typeshed.Self`, where applicable

* Revert changes to `google-cloud-ndb` (ambiguous)

* Remove empty line added by script

* Revert changes to `stubs/python-dateutil/dateutil/relativedelta.pyi`

* Manually add a few more that the script missed

* Improve `filelock` annotation

Source code here: https://github.com/tox-dev/py-filelock/blob/79ec7b2826e33b982fe83b057f359448b9d966ba/src/filelock/_api.py#L207

* Improve `opentracing/scope` annotation

Source code here: https://github.com/opentracing/opentracing-python/blob/3e1d357a348269ef54d67f761302fab93dbfc0f7/opentracing/scope.py#L71

* Improve `redis/client` stub

Source code here: https://github.com/redis/redis-py/blob/15f315a496c3267c8cbcc6d6d9c6005ea4d4a4d5/redis/client.py#L1217

* Improve `redis/lock` annotation

Source code here: https://github.com/redis/redis-py/blob/15f315a496c3267c8cbcc6d6d9c6005ea4d4a4d5/redis/lock.py#L155

* Improve `requests/models` annotation

Source code here: https://github.com/psf/requests/blob/d718e753834b84018014a23d663369ac27d1ab9c/requests/models.py#L653

stdlib/distutils/version.pyi

@@ -1,38 +1,37 @@
+from _typeshed import Self
 from abc import abstractmethod
-from typing import Pattern, TypeVar
-
-_T = TypeVar("_T", bound=Version)
+from typing import Pattern
 
 class Version:
     def __repr__(self) -> str: ...
     def __eq__(self, other: object) -> bool: ...
-    def __lt__(self: _T, other: _T | str) -> bool: ...
-    def __le__(self: _T, other: _T | str) -> bool: ...
-    def __gt__(self: _T, other: _T | str) -> bool: ...
-    def __ge__(self: _T, other: _T | str) -> bool: ...
+    def __lt__(self: Self, other: Self | str) -> bool: ...
+    def __le__(self: Self, other: Self | str) -> bool: ...
+    def __gt__(self: Self, other: Self | str) -> bool: ...
+    def __ge__(self: Self, other: Self | str) -> bool: ...
     @abstractmethod
     def __init__(self, vstring: str | None = ...) -> None: ...
     @abstractmethod
-    def parse(self: _T, vstring: str) -> _T: ...
+    def parse(self: Self, vstring: str) -> Self: ...
     @abstractmethod
     def __str__(self) -> str: ...
     @abstractmethod
-    def _cmp(self: _T, other: _T | str) -> bool: ...
+    def _cmp(self: Self, other: Self | str) -> bool: ...
 
 class StrictVersion(Version):
     version_re: Pattern[str]
     version: tuple[int, int, int]
     prerelease: tuple[str, int] | None
     def __init__(self, vstring: str | None = ...) -> None: ...
-    def parse(self: _T, vstring: str) -> _T: ...
+    def parse(self: Self, vstring: str) -> Self: ...
     def __str__(self) -> str: ...
-    def _cmp(self: _T, other: _T | str) -> bool: ...
+    def _cmp(self: Self, other: Self | str) -> bool: ...
 
 class LooseVersion(Version):
     component_re: Pattern[str]
     vstring: str
     version: tuple[str | int, ...]
     def __init__(self, vstring: str | None = ...) -> None: ...
-    def parse(self: _T, vstring: str) -> _T: ...
+    def parse(self: Self, vstring: str) -> Self: ...
     def __str__(self) -> str: ...
-    def _cmp(self: _T, other: _T | str) -> bool: ...
+    def _cmp(self: Self, other: Self | str) -> bool: ...