Make middleware expose more wrapped attributes

Include __name__, __module__, __qualname__, __doc__, __annotations__
Addresses getsentry#1145

sentry_sdk/integrations/django/middleware.py

@@ -174,7 +174,8 @@ def __call__(self, *args, **kwargs):
             with middleware_span:
                 return f(*args, **kwargs)
 
-    if hasattr(middleware, "__name__"):
-        SentryWrappingMiddleware.__name__ = middleware.__name__
+    for attr in ('__name__', '__module__', '__qualname__', '__doc__', '__annotations__'):
+        if hasattr(middleware, attr):
+            setattr(SentryWrappingMiddleware, attr, getattr(middleware, attr))
 
     return SentryWrappingMiddleware