ci: use self-hosted x86_64-darwin runners #3430

Job	Run time
generate-examples	24s
generate-examples	24s
generate-examples	25s
build (self-hosted, linux, ARM64)	4s
build (self-hosted, linux, ARM64)	26s
build (self-hosted, linux, ARM64)	2m 2s
build (self-hosted, linux, X64)	4s
build (self-hosted, linux, X64)	23s
build (self-hosted, linux, X64)	1m 31s
build (self-hosted, macOS, ARM64)	3m 31s
build (self-hosted, macOS, ARM64)	3m 31s
build (self-hosted, macOS, ARM64)	2m 47s
build (self-hosted, macOS, X64)	4m 37s
build (self-hosted, macOS, X64)	4m 37s
build (self-hosted, macOS, X64)	2m 53s
pin	0s
pin	1s
pin	0s
tests	0s
tests	1s
tests	0s
${{ matrix.example }} (${{ join(matrix.os) }})	0s
${{ matrix.example }} (${{ join(matrix.os) }})	1s
${{ matrix.example }} (${{ join(matrix.os) }})	0s
zsh/fish (${{ join(matrix.os) }})	0s
zsh/fish (${{ join(matrix.os) }})	1s
zsh/fish (${{ join(matrix.os) }})	0s
direnv (${{ join(matrix.os) }})	0s
direnv (${{ join(matrix.os) }})	1s
direnv (${{ join(matrix.os) }})	0s
	27m 44s

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