Use ghcup action #276

Job	Run time
build (ubuntu-latest, 8.6, 3.8.1.0)	6m 2s
arm (arm32v7)	11s
freebsd (self-hosted, FreeBSD, X64, 9.4.8)	2m 35s
build (ubuntu-latest, 8.8, 3.8.1.0)	6m 9s
darwin_arm (self-hosted, macOS, ARM64, 8.10.7)	7m 37s
arm (arm64v8)	1s
freebsd (self-hosted, FreeBSD, X64, 9.6.4)	56s
build (ubuntu-latest, 8.10, 3.8.1.0)	6m 18s
darwin_arm (self-hosted, macOS, ARM64, 9.2.6)	7m 11s
build (ubuntu-latest, 9.0, 3.8.1.0)	6m 26s
darwin_arm (self-hosted, macOS, ARM64, 9.4.4)	9m 12s
i386	26s
build (ubuntu-latest, 9.2, 3.8.1.0)	3m 51s
build (ubuntu-latest, 9.4, 3.8.1.0)	4m 48s
build (ubuntu-latest, 9.6, 3.8.1.0)	5m 0s
build (ubuntu-latest, 9.8, 3.8.1.0)	4m 12s
build (macos-13, 9.4, 3.8.1.0)	24m 15s
build (macos-13, 9.6, 3.8.1.0)	24m 15s
build (windows-latest, 9.4, 3.8.1.0)	24m 8s
build (windows-latest, 9.6, 3.8.1.0)	18m 4s
	2h 41m 37s

Provide feedback