Use ghcup action #278

Job	Run time
i386	36s
arm (arm32v7)	3m 22s
darwin_arm (self-hosted, macOS, ARM64, 8.10.7)	11m 24s
arm (arm64v8)	2m 46s
build (ubuntu-latest, 8.6, 3.8.1.0)	6m 17s
darwin_arm (self-hosted, macOS, ARM64, 9.2.6)	7m 16s
freebsd (self-hosted, FreeBSD, X64, 9.4.8)	3m 36s
build (ubuntu-latest, 8.8, 3.8.1.0)	5m 54s
darwin_arm (self-hosted, macOS, ARM64, 9.4.4)	9m 13s
freebsd (self-hosted, FreeBSD, X64, 9.6.4)	2m 35s
build (ubuntu-latest, 8.10, 3.8.1.0)	6m 21s
build (ubuntu-latest, 9.0, 3.8.1.0)	5m 55s
build (ubuntu-latest, 9.2, 3.8.1.0)	3m 49s
build (ubuntu-latest, 9.4, 3.8.1.0)	6m 22s
build (ubuntu-latest, 9.6, 3.8.1.0)	4m 48s
build (ubuntu-latest, 9.8, 3.8.1.0)	4m 22s
build (macos-13, 9.4, 3.8.1.0)	19m 1s
build (macos-13, 9.6, 3.8.1.0)	17m 0s
build (windows-latest, 9.4, 3.8.1.0)	19m 39s
build (windows-latest, 9.6, 3.8.1.0)	20m 41s
	2h 40m 57s

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