Add defaults for third-party stubs A-D (#9952)

stubs/chardet/chardet/__init__.pyi

@@ -18,4 +18,4 @@ class _LangModelType(TypedDict):  # noqa: Y049
     language: str
 
 def detect(byte_str: bytes | bytearray) -> _FinalResultType: ...
-def detect_all(byte_str: bytes | bytearray, ignore_threshold: bool = ...) -> list[_IntermediateResultType]: ...
+def detect_all(byte_str: bytes | bytearray, ignore_threshold: bool = False) -> list[_IntermediateResultType]: ...

stubs/chardet/chardet/universaldetector.pyi

@@ -23,7 +23,7 @@ class UniversalDetector:
     done: bool
     lang_filter: int
     logger: Logger
-    def __init__(self, lang_filter: int = ...) -> None: ...
+    def __init__(self, lang_filter: int = 31) -> None: ...
     def reset(self) -> None: ...
     def feed(self, byte_str: bytes) -> None: ...
     def close(self) -> _FinalResultType: ...