Update tooling and fix linter errors #1071

Job	Run time
lint	32s
quicktests	56s
coverage	1m 30s
unittests (ubuntu-latest)	2m 4s
unittests (self-hosted, linux, arm64)	1m 38s
unittests (macos-latest)	3m 47s
unittests (self-hosted, macos, arm64)	1m 13s
unittests (windows-latest)	5m 40s
Build postcli (ubuntu-latest)	1m 5s
Build postcli (self-hosted, linux, arm64)	30s
Build postcli (macos-latest)	1m 25s
Build postcli (self-hosted, macos, arm64)	41s
Build postcli (windows-latest)	2m 1s
Publish release	0s
	23m 2s

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