Reduce number of events in some ART tests

These tests take ~24 hours and sometimes don't finish in a day so we don't get results copied back. This MR halves the number of events in each test.

modified: Trigger/TrigValidation/TrigAnalysisTest/test/test_trigAna_RDOtoRDOTrig_grid.py modified: Trigger/TrigValidation/TrigAnalysisTest/test/test_trigAna_q221_RDOtoAOD_mt1_grid.sh

This merge request affects 1 package:

• Trigger/TrigValidation/TrigAnalysisTest

Adding @hartj ,@jpanduro as watchers

added Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash 4ba18857)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 9964]

merged

mentioned in commit 191ccf69

added sweep:ignore label