Build and test installer #1634

Job	Run time
Build installer (linux-64)	8m 19s
Build installer (linux-aarch64)	6m 45s
Build installer (linux-ppc64le)	6m 37s
Build installer (osx-arm64)	6m 3s
Build installer (osx-64)	7m 2s
Integration tests (Py3 server) (rel-v8r0)	20m 43s
Create environment.yaml (linux-64)	43s
Integration tests (Py3 server) (integration)	21m 14s
Basic tests (centos:7)	52s
macOS tests (macos-11)	1s
Basic tests (centos:8)	53s
macOS tests (macos-12)	1m 33s
Show release notes and diff	2m 3s
	1h 22m 48s

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