Replace Any with Incomplete in many places (#9558)

stubs/opentracing/opentracing/span.pyi

@@ -1,4 +1,4 @@
-from _typeshed import Self
+from _typeshed import Incomplete, Self
 from types import TracebackType
 from typing import Any
 
@@ -25,5 +25,5 @@ class Span:
     def __exit__(
         self, exc_type: type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> None: ...
-    def log_event(self: Self, event: Any, payload: Any | None = ...) -> Self: ...
+    def log_event(self: Self, event: Any, payload: Incomplete | None = ...) -> Self: ...
     def log(self: Self, **kwargs: Any) -> Self: ...