Cleanup Makefiles #1127

Job	Run time
quicktests	52s
lint	42s
coverage	1m 29s
unittests (ubuntu-22.04)	1m 39s
unittests (ubuntu-latest-arm-8-cores)	3m 16s
unittests (macos-13)	2m 38s
unittests (self-hosted, macos, arm64)	1m 1s
unittests (windows-2022)	2m 53s
Build postcli (ubuntu-22.04)	35s
Build postcli (ubuntu-latest-arm-8-cores)	2m 8s
Build postcli (macos-13)	55s
Build postcli (self-hosted, macos, arm64)	15s
Build postcli (windows-2022)	2m 19s
Publish release	0s
	20m 42s

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