PunctureTracker: Fix ordering and validity issues

[lucass-carneiro]

This PR addresses the following two problems in PunctureTracker:

1. PunctureTracker/src/puncture.cxx — updatePreviousTime opened with DECLARE_CCTK_ARGUMENTS, which declares a pointer to every variable the thorn can see and trips CCTK_HasAccess for each one not in the routine's READS/WRITES. This results in 39 spurious "Possibly illegal access" warnings per iteration in a CCTK_DEBUGbuild. It needscctk_timeand nothing else, so it now takes it fromcGH`.
2. PunctureTracker/schedule.ccl: Both PunctureTracker_Setup and PunctureTracker_Track are read-modify-write routines on partially-written array groups, so WRITES alone makes CarpetX poison and abort at iteration 0 under poison_undefined_values = yes. Declaring the READS is what makes the ordering driver-enforced. The addition of AFTER BoxInBox_Init also enforces that the correct scheduling.

[lucass-carneiro]

Please note that the original PR did not change the CI scripts, but because CI was broken anyway, I'm fixing it here.

My CI fix is very simple: I copied all of my homework from the CarpetX CI optionlists and these seem to be working fine now.