Build and test installer #1612

Job	Run time
Build installer (linux-64)	7m 32s
Build installer (linux-aarch64)	6m 33s
Build installer (linux-ppc64le)	5m 48s
Build installer (osx-arm64)	5m 2s
Build installer (osx-64)	6m 34s
Create environment.yaml (linux-64)	40s
macOS tests (macos-11)	1s
Basic tests (centos:7)	59s
macOS tests (macos-12)	2m 5s
Integration tests (Py3 server) (rel-v8r0)	20m 53s
Basic tests (centos:8)	1m 0s
Integration tests (Py3 server) (integration)	1m 56s
Show release notes and diff	1m 26s
	1h 0m 29s

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