Bump version to 0.39.0-beta001 #558

Job	Run time
build-devcontainer	1m 39s
build (Debug, windows-latest)	12m 53s
build (Debug, ubuntu-latest)	11m 54s
build (Release, windows-latest)	14m 45s
build (Release, ubuntu-latest)	11m 34s
build (Release, macOS-latest)	10m 53s
build (Debug, macOS-latest)	9m 5s
	1h 12m 43s

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