stdlib: add argument default values (#9501)

stdlib/dataclasses.pyi

@@ -239,17 +239,17 @@ if sys.version_info >= (3, 11):
         fields: Iterable[str | tuple[str, type] | tuple[str, type, Any]],
         *,
         bases: tuple[type, ...] = ...,
-        namespace: dict[str, Any] | None = ...,
-        init: bool = ...,
-        repr: bool = ...,
-        eq: bool = ...,
-        order: bool = ...,
-        unsafe_hash: bool = ...,
-        frozen: bool = ...,
-        match_args: bool = ...,
-        kw_only: bool = ...,
-        slots: bool = ...,
-        weakref_slot: bool = ...,
+        namespace: dict[str, Any] | None = None,
+        init: bool = True,
+        repr: bool = True,
+        eq: bool = True,
+        order: bool = False,
+        unsafe_hash: bool = False,
+        frozen: bool = False,
+        match_args: bool = True,
+        kw_only: bool = False,
+        slots: bool = False,
+        weakref_slot: bool = False,
     ) -> type: ...
 
 elif sys.version_info >= (3, 10):