release: cut the v20.0.0-rc.3 release #1166

Job	Run time
list	27s
workflow (modules-builder-tests)	1m 43s
workflow (build-cli)	1m 41s
workflow (devkit-core-tests-rerun)	1m 25s
workflow (devkit-core-tests)	1m 26s
workflow (build-unit-tests)	2m 20s
	9m 2s

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