fix: move request client retry to correct central req method used in …

…all codepaths

dlt/sources/helpers/requests/retry.py

@@ -239,7 +239,7 @@ def _make_session(self) -> Session:
         session.mount("http://", self._adapter)
         session.mount("https://", self._adapter)
         retry = _make_retry(**self._retry_kwargs)
-        session.request = retry.wraps(session.request)  # type: ignore[method-assign]
+        session.send = retry.wraps(session.send)  # type: ignore[method-assign]
         return session
 
     @property