Build and test installer #1388

Job	Run time
Build installer (linux-64)	6m 12s
Build installer (linux-aarch64)	5m 25s
Build installer (linux-ppc64le)	4m 52s
Build installer (osx-arm64)	3m 52s
Build installer (osx-64)	5m 3s
macOS tests (macos-11)	1m 36s
Integration tests (Py3 server) (rel-v8r0)	30m 38s
macOS tests (macos-12)	1m 38s
Create environment.yaml (linux-64)	33s
Integration tests (Py3 server) (integration)	20m 31s
Basic tests (centos:7)	1m 4s
Basic tests (centos:8)	1m 3s
Show release notes and diff	1m 58s
	1h 24m 25s

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