Change default for float.__new__ to match runtime

Author: srittau

stdlib/builtins.pyi

@@ -362,7 +362,7 @@ class int:
 
 @disjoint_base
 class float:
-    def __new__(cls, x: ConvertibleToFloat = 0.0, /) -> Self: ...
+    def __new__(cls, x: ConvertibleToFloat = 0, /) -> Self: ...
     def as_integer_ratio(self) -> tuple[int, int]: ...
     def hex(self) -> str: ...
     def is_integer(self) -> bool: ...