Merge #4253 Allow installs and removals to be cancelled #799

Job	Run time
check-dev-build	3s
sign-assets / smoke-inflator / build-release / build	1m 50s
sign-assets / test-release / build-debug / build	1m 40s
sign-assets / test-release / test-build	53s
sign-assets / smoke-inflator / smoke-test-inflator	58s
sign-assets / test-release / notify	0s
sign-assets / smoke-inflator / notify	0s
sign-assets / sign	37s
upload-release-s3	30s
upload-dmg	32s
upload-deb	35s
upload-inflator	2m 32s
upload-rpm	29s
upload-metadata-tester	1m 7s
notify-discord / Notify Discord	5s
	11m 51s

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