[hooks] make sure we keep of any exception when trying to index

cubicweb_elasticsearch/hooks.py

@@ -110,3 +110,6 @@
                 es.index(**kwargs)
             except (ConnectionError, ProtocolError):
                 log.warning('Failed to index in hook, could not connect to ES')
+            except Exception as exc:
+                log.exception('Failed to index in hook')
+                raise