(maint) stop testing on macosx12 #126

Job	Run time
Install kubectl-ran formula on macos-12	1s
Install pe-client-tools cask on macos-13	39s
Install pe-client-tools-2019.8 cask on macos-13	50s
Install pdk cask on macos-13	56s
Install puppet-agent cask on macos-13	30s
Install puppet-agent-7 cask on macos-13	28s
Install puppet-agent-8 cask on macos-13	35s
Install puppet-bolt cask on macos-13	41s
Install puppet-bolt@2 cask on macos-13	38s
Install pe-client-tools cask on macos-14	32s
Install pe-client-tools-2019.8 cask on macos-14	55s
Install pdk cask on macos-14	34s
Install puppet-agent cask on macos-14	26s
Install puppet-agent-7 cask on macos-14	15s
Install puppet-agent-8 cask on macos-14	25s
Install puppet-bolt cask on macos-14	1m 0s
Install puppet-bolt@2 cask on macos-14	59s
	10m 24s

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