Add support to query work on RunQueueEvent

[grospelliergilles]

Add method RunQueueEvent::hasPendingWork() to know if the RunQueue recorded in a RunQueueEvent has work.
This is implemented using cudaQueryEvent() and hipQueryEvent(). It is not yet implemented with SYCL.

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 70.57%. Comparing base (e001132) to head (e43e36a).
Report is 3 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...e/src/arcane/tests/accelerator/RunQueueUnitTest.cc	90.00%	0 Missing and 2 partials ⚠️
...rcane/src/arcane/accelerator/core/RunQueueEvent.cc	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2006      +/-   ##
==========================================
- Coverage   70.60%   70.57%   -0.03%     
==========================================
  Files        2288     2288              
  Lines      167405   167410       +5     
  Branches    19281    19285       +4     
==========================================
- Hits       118196   118150      -46     
- Misses      42136    42183      +47     
- Partials     7073     7077       +4     

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