Fix keyerror case

Author: maxi297

airbyte_cdk/sources/streams/http/http_client.py

@@ -528,6 +528,8 @@ def __getitem__(self, key):  # type: ignore  # lib is not typed
         except Exception as exception:
             if not isinstance(exception, KeyError):
                 logger.warning(f"Error while retrieving item from cache: {exception}")
+            else:
+                raise exception
 
     def _write(self, key: str, value: str) -> None:
         try: