PUBLICAPI-976: renewal attempt fix (#133)

Author: complynx

src/nebius/aio/token/renewable.py

@@ -409,6 +409,7 @@ async def _fetch_once(self) -> Token:
         the cached token on success.
         """
         tok = None
+        self._renewal_attempt += 1
         log.debug(f"refreshing token, attempt {self._renewal_attempt}")
         self._break_previous_attempt.clear()
         self._synchronous_can_proceed.clear()