Prepare 2.2.0 release #366

Job	Run time
build (ubuntu-latest, Debug, True)	10m 54s
build (ubuntu-latest, Debug, False)	11m 13s
build (ubuntu-latest, Release, True)	10m 6s
build (ubuntu-latest, Release, False)	10m 8s
build (windows-latest, Debug, True)	19m 10s
build (windows-latest, Debug, False)	18m 21s
build (windows-latest, Release, True)	14m 30s
build (windows-latest, Release, False)	12m 44s
build (macos-latest, Debug, True)	4m 48s
build (macos-latest, Debug, False)	4m 15s
build (macos-latest, Release, True)	7m 8s
build (macos-latest, Release, False)	4m 6s
	2h 7m 23s

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