enable github actions on main-* branches #3107

Job	Run time
JS unit tests	59s
.NET unit tests (ubuntu-latest)	2m 48s
Build published projects without warnings (Release)	2m 43s
Build all projects without errors	9m 45s
.NET unit tests (windows-2022)	8m 32s
Build published projects without warnings (Debug)	5m 9s
.NET unit tests (macOS-latest)	5m 36s
UI tests (chrome, ubuntu-latest, Production, Default)	12m 59s
UI tests (chrome, windows-2022, Development, Default)	8m 13s
UI tests (firefox, ubuntu-latest, Development, Default)	18m 23s
UI tests (firefox, ubuntu-latest, Production, Default)	17m 16s
UI tests (firefox, ubuntu-latest, Development, ExperimentalFeaturesTests)	18m 19s
UI tests (chrome, ubuntu-latest, Production, ExperimentalFeaturesTests)	13m 45s
	2h 4m 27s

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