Disabled LumiBlockMuWriter in trigger jobs
This MR is a response to issues created by the MR: !21563 (merged) Tagging @smh @tamartin @fwinkl
I tested the fix with TUT:
100% tests passed, 0 tests failed out of 29 Label Time Summary: TrigUpgradeTest = 1720.70 sec*proc (29 tests)