Configuring tmp path for all websites by default

closes https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/598
closes https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/600 partial https://gitlab.cern.ch/webservices/webframeworks-planning/-/issues/596

Setting /tmp sufficed to mitigate/eliminate the error, an improvement can made was using medium: Memory in order to improve performance of the usage of /tmp folder.

✅ Tested manually by re-creating the job for ipt-dep and te-dep after setting the configmap with $settings['file_temp_path'] = '/tmp'.