warning about unknown HTTP statuses

Author: jschlyter

src/cryptojwt/key_bundle.py

@@ -392,6 +392,8 @@ def do_remote(self):
             pass
 
         else:
+            LOGGER.warning("HTTP status %d reading remote JWKS from %s",
+                           _http_resp.status_code, self.source)
             raise UpdateFailed(
                 REMOTE_FAILED.format(self.source, _http_resp.status_code))
         self.last_updated = time.time()