release: cut the v20.0.0-rc.1 release #1114

Job	Run time
list	22s
workflow (build-cli)	1m 32s
workflow (devkit-core-tests-rerun)	1m 25s
workflow (modules-builder-tests)	1m 47s
workflow (build-unit-tests)	2m 17s
workflow (devkit-core-tests)	1m 9s
	8m 32s

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