HH-48514 add more handler tests
HH-48514 add new MicroHandler test
HH-48514 set MicroHandler group name
HH-48514 remove some dead code
Merge remote-tracking branch 'origin/HH-48514' into EXP-12994
release 2.21.23 [an.sumin@hh.ru]
HH-48399 remove @before
Merge remote-tracking branch 'origin/HH-48399' into EXP-13005
release 2.21.24 [an.sumin@hh.ru]
HH-48427 remove old test_utils