Bump version to "v21.0.0-rc.0" with changelog.#31645

alan-agius4 merged 1 commit intoangular:21.0.xangular/angular-cli:21.0.xfrom

alan-agius4:release-stage-21.0.0-rc.0alan-agius4/angular-cli:release-stage-21.0.0-rc.0Copy head branch name to clipboard