[OMPT] Fix issue #84180

[rpereira-dev]

Option (2) suggested to fix #84180

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[jprotze]

Please extend test/ompt/cancel/cancel_taskgroup.c by checks that the extra switches are not there.

[rpereira-dev]

I started just that @jprotze and then realized we could generalize tests to task_schedule callbacks, not only cancellation.

What about tracking tasks bound on threads in the callback.h tool and ensuring coherency with the prior_task_data passed by the runtime ?
I have done just that but it implied sed-ing most test files which assumed thread_data->value is a thread id, and is now a couple (thread_id, current_task_id).

I added #84180 minimal example to test/ompt/cancel/cancel_taskgroup.c and a CHECK-NOT 0: wrong task_schedule

Good thing is grepping 0: wrong task_schedule in test outputs detects other issues in:

• ompt/tasks/task_types_serialized.c - that is [OMPT] Untied tasks schedules #83883
• ompt/parallel/region_in_expl_task_task_frames.c - yet another issue related to task_schedule callbacks

I have not added a check in these 2 tests as this PR does not fix them

Let me know if thats too much modifications, I can still revert and check only the test/ompt/cancel/cancel_taskgroup.c without modifying the rest of the world