docs: update Angular CLI help (angular#63736)

Updated Angular CLI help contents.

PR Close angular#63736

Author: angular-robot

adev/src/content/cli/help/_build-info.json

@@ -1,4 +1,4 @@
 {
-  "branchName": "refs/heads/20.2.x",
-  "sha": "805f075552586fecab31ab1b0fa34e270697ee1d"
+  "branchName": "refs/heads/20.3.x",
+  "sha": "5492b30e72ca49947ab9e6199af0ae69d81f2267"
 }