Add WaitFor into ValidationPath tests #2791

Job	Run time
Build all projects without errors	10m 12s
Build published projects without warnings (Release)	1m 45s
JS unit tests	1m 13s
.NET unit tests (ubuntu-latest)	3m 13s
Build published projects without warnings (Debug)	3m 30s
.NET unit tests (windows-2022)	11m 55s
UI tests (chrome, ubuntu-latest, Production, Default)	13m 16s
.NET unit tests (macOS-latest)	8m 12s
UI tests (chrome, windows-2022, Development, Default)	25m 53s
UI tests (firefox, ubuntu-latest, Development, Default)	18m 18s
UI tests (firefox, ubuntu-latest, Production, Default)	17m 36s
UI tests (firefox, ubuntu-latest, Development, ExperimentalFeaturesTests)	18m 8s
UI tests (chrome, ubuntu-latest, Production, ExperimentalFeaturesTests)	13m 8s
	2h 26m 19s

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