Build and test installer #1424

Job	Run time
Build installer (linux-64)	7m 24s
Build installer (linux-aarch64)	6m 30s
Build installer (linux-ppc64le)	7m 37s
Build installer (osx-arm64)	4m 31s
Build installer (osx-64)	6m 11s
Basic tests (centos:7)	52s
Create environment.yaml (linux-64)	37s
macOS tests (macos-11)	1m 53s
Basic tests (centos:8)	49s
Integration tests (Py3 server) (rel-v8r0)	21m 9s
macOS tests (macos-12)	1m 46s
Integration tests (Py3 server) (integration)	6m 31s
Show release notes and diff	1m 36s
	1h 7m 26s

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