Bump version to 4.15.1 #804

Job	Run time
build-devcontainer	9m 9s
fable-npm-build (ubuntu-latest, 18)	2m 0s
fable-python-build (ubuntu-latest, 3.10)	2m 48s
fable-npm-build (ubuntu-latest, 20)	2m 7s
dotnet-build (Debug, ubuntu-latest)	3m 18s
fable-python-build (ubuntu-latest, 3.11)	2m 44s
fable-npm-build (ubuntu-latest, latest)	2m 10s
dotnet-build (Debug, windows-latest)	5m 38s
fable-python-build (ubuntu-latest, 3.12)	2m 54s
fable-npm-build (windows-latest, 18)	6m 30s
dotnet-build (Debug, macOS-latest)	5m 33s
fable-python-build (windows-latest, 3.10)	6m 25s
fable-npm-build (windows-latest, 20)	6m 38s
dotnet-build (Release, ubuntu-latest)	3m 7s
fable-python-build (windows-latest, 3.11)	5m 15s
fable-npm-build (windows-latest, latest)	6m 37s
dotnet-build (Release, windows-latest)	5m 28s
fable-python-build (windows-latest, 3.12)	5m 22s
fable-npm-build (macOS-latest, 18)	3m 21s
dotnet-build (Release, macOS-latest)	6m 43s
fable-python-build (macOS-latest, 3.10)	4m 50s
fable-npm-build (macOS-latest, 20)	3m 15s
fable-python-build (macOS-latest, 3.11)	4m 29s
fable-npm-build (macOS-latest, latest)	3m 2s
fable-python-build (macOS-latest, 3.12)	4m 15s
	1h 53m 38s

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