Add ttbar without pileup InDetART test with ITk geometry
This MR adds a ttbar without pileup InDetART test with ITk geometry. As discussed in !52763 (comment 5539794), the test reprocesses 10 ttbar events starting from EVNT.
If anyone's following, this is the 4th addition in a series of 5 new run-4 tests, the remaining being ttbar with full run 4 pileup (that one will start from RDO, for obvious reasons)