set up ptj for Long lived chargino production grid request for Run 2 and Run 3 [skip modfiles]
Description of bug
Not proper ptj setting for https://its.cern.ch/jira/browse/ATLMCPROD-11077
Changes introduced
set ptj as min(20, ktdurham / 2 // 10 * 10)
Tests
Issues resolved
Closes #