Refactoring of event queue #2590

Job	Run time
check-labels / check	3s
build-trace-tools / run (ubuntu-latest)	3s
unit-tests-multi / run (ubuntu-latest)	7s
build-rti / run (ubuntu-latest)	8s
build-trace-tools / run (macos-latest)	10s
unit-tests-multi / run (macos-latest)	17s
build-rti / run (macos-latest)	27s
build-trace-tools / run (windows-latest)	30s
unit-tests-single / run (ubuntu-latest)	18s
unit-tests-multi / run (windows-latest)	57s
build-rti / run (windows-latest)	15s
unit-tests-single / run (macos-latest)	23s
unit-tests-single / run (windows-latest)	1m 0s
fetch-lf / extract-ref	2s
lf-default-zephyr	0s
lf-python	0s
lf-default-arduino	0s
lf-gedf-np	0s
lf-adaptive	0s
lf-default / regular-tests (ubuntu-latest)	15m 57s
	20m 37s

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