feat: run flynt on the code base to convert everything into f-strings

Hello dear contributors,

This is an auto generated modification to help you improve the code base of logilab. If this commit is bad don't hesitate to close this MR and report it here https://forge.extranet.logilab.fr/cubicweb/cube-doctor/-/issues.

Kind regards,

cubicweb_counters/entities.py

@@ -67,7 +67,8 @@
             % (self.__regid__, self.increment, self.eid)
         )
         cu = self._cw.system_sql(
-            f"""SELECT cw_value, cw_reset_on, cw_reset_every FROM cw_{self.__regid__}
+            f"""SELECT cw_value, cw_reset_on, cw_reset_every
+            FROM cw_{self.__regid__}
             WHERE cw_eid={self.eid}"""
         )
         value, reset_on, reset_mode = cu.fetchone()