tests (CI): use LHCbDIRAC_CERTIF variable instead of DIRAC_PILOT
I am also using a host certificate in LHCbDIRAC repo, so I declared the variable in the group instead of the project, and gave them a more generic name
I am also using a host certificate in LHCbDIRAC repo, so I declared the variable in the group instead of the project, and gave them a more generic name