[lint] don't return from failsafe wrapper

Author: outergod

instrumentation/opentelemetry-instrumentation-fastapi/src/opentelemetry/instrumentation/fastapi/__init__.py

@@ -298,7 +298,7 @@ def failsafe(func):
                     @functools.wraps(func)
                     def wrapper(*args, **kwargs):
                         try:
-                            return func(*args, **kwargs)
+                            func(*args, **kwargs)
                         except Exception:
                             pass