Add "pure virtual method called" to check_log patterns

Adding this pattern to be able to better track errors like the one in ATR-20586

I don't add it to the perl version of the check_log script which is obsolete and should be removed soon. Trigger ART tests now use the python version only.

This merge request affects 1 package:

• Trigger/TrigValidation/TrigValTools

Adding @hartj ,@jpanduro as watchers

added Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash f41746c3)

	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 6017]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 2e479238

added sweep:ignore label