Drop old MacOS jobs #903

Job	Run time
fedora37	4m 10s
centos7	3m 21s
build (ubuntu-22.04, 9.8)	2m 17s
build (ubuntu-22.04, 9.6)	2m 21s
arm (arm32v7)	2m 15s
build (ubuntu-22.04, 9.4)	3m 32s
freebsd (self-hosted, FreeBSD, X64, 9.4.8)	1m 36s
arm (arm64v8)	2m 15s
build (ubuntu-22.04, 9.2)	2m 55s
freebsd (self-hosted, FreeBSD, X64, 9.6.4)	1m 35s
build (ubuntu-22.04, 9.0)	4m 19s
build (ubuntu-22.04, 8.10)	4m 41s
i386	3m 36s
build (ubuntu-22.04, 8.8)	4m 18s
build (ubuntu-22.04, 8.6)	4m 39s
build (macOS-latest, 9.8)	4m 44s
build (macOS-latest, 9.6)	4m 18s
build (macOS-latest, 9.4)	3m 45s
build (macOS-latest, 9.2)	2m 53s
	1h 3m 30s

Provide feedback