release: cut the v21.0.7 release

release: cut the v20.3.16 release

release: cut the v19.2.18 release

release: bump VSCode extension version to 21.0.1 (angular#66153)

release: cut the v21.1.0-next.4 release

release: cut the v21.0.6 release

release: cut the v21.1.0-next.3 release

release: cut the v21.1.0-next.2 release

release: cut the v21.0.5 release

release: cut the v21.0.4 release