Add Task.ignore #865

Job	Run time
build-devcontainer	8m 38s
dotnet-build (Debug, ubuntu-latest)	3m 22s
fable-npm-build (ubuntu-latest, 18)	2m 0s
dotnet-build (Debug, windows-latest)	5m 47s
fable-python-build (ubuntu-latest, 3.10)	2m 47s
fable-npm-build (ubuntu-latest, 20)	2m 1s
dotnet-build (Debug, macOS-latest)	3m 6s
fable-python-build (ubuntu-latest, 3.11)	2m 41s
fable-npm-build (ubuntu-latest, latest)	2m 18s
dotnet-build (Release, ubuntu-latest)	3m 8s
fable-python-build (ubuntu-latest, 3.12)	2m 47s
fable-npm-build (windows-latest, 18)	5m 26s
dotnet-build (Release, windows-latest)	6m 43s
fable-python-build (windows-latest, 3.10)	6m 34s
fable-npm-build (windows-latest, 20)	5m 38s
dotnet-build (Release, macOS-latest)	2m 46s
fable-python-build (windows-latest, 3.11)	4m 59s
fable-npm-build (windows-latest, latest)	5m 53s
fable-npm-build (macOS-latest, 18)	1m 38s
fable-npm-build (macOS-latest, 20)	1m 34s
fable-npm-build (macOS-latest, latest)	1m 53s
fable-python-build (windows-latest, 3.12)	3m 43s
fable-python-build (macOS-latest, 3.10)	1m 44s
fable-python-build (macOS-latest, 3.11)	1m 48s
fable-python-build (macOS-latest, 3.12)	2m 9s
	1h 31m 3s

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