message: docs: update to use latest 8.3.x CLI
  Change the "Updating to v9" docs to reflect that we want to use the latest 8.3.x CLI build for updating and not just 8.3.15.
  PR Close
diff: @@ -7,7 +7,7 @@ This guide contains everything you need to know about updating to the next Angul
  If your application uses the CLI, you can update to version 9 automatically with the help of the `ng update` script:
  ```
  -npm install --no-save @angular/cli@8.3.15
  +npm install --no-save @angular/cli@^8.3.15
  ng update @angular/cli @angular/core --next
  ```
  