Upgrade Ubuntu to 22.04 from 20.04 #3151

Job	Run time
Unit tests (ubuntu-20.04, 1.21)	6m 5s
Build (ubuntu-latest, x86_64-unknown-linux-gnu, amd64)	2m 24s
Unit tests (ubuntu-22.04, 1.21)	6m 18s
Build (ubuntu-latest, aarch64-unknown-linux-gnu, arm64)	5m 10s
Build (macos-latest, x86_64-apple-darwin, amd64)	3m 17s
Integration tests (ubuntu-20.04, 1.21, .CLI.)	15m 15s
Build (macos-latest, aarch64-apple-darwin, arm64)	3m 59s
Integration tests (ubuntu-20.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	13m 28s
Build (windows-latest, x86_64-pc-windows-gnu, amd64)	6m 18s
Integration tests (ubuntu-22.04, 1.21, .CLI.)	14m 58s
Integration tests (ubuntu-22.04, 1.21, ^Test(([^C])\|(C[^L])\|(CL[^I])).*$)	12m 50s
	1h 30m 2s

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