reduce the amount of PNC entities created during buildconfigurations_api test.
reduce the amount of PNC entities created during buildconfigurations_api test.

project-ncl/pnc-cli,project-ncl/pnc-cli,thauser/pnc-cli,thauser/pnc-cli,janinko/pnc-cli,janinko/pnc-cli,jianajavier/pnc-cli,project-ncl/pnc-cli,jianajavier/pnc-cli,thauser/pnc-cli,jianajavier/pnc-cli,janinko/pnc-cli