message: [cli] improve `vc build --help` language
  Tweak the `--yes` help language for the `build` command to be more consistent with other flag descriptions.
  Related to:
diff: @@ -91,7 +91,7 @@ const help = () => {
  --output [path] Directory where built assets should be written to
  --prod Build a production deployment
  -d, --debug Debug mode [off]
  - -y, --yes Pull environment variables and project settings if not found locally
  + -y, --yes Skip the confirmation prompt about pulling environment variables and project settings when not found locally
  ${chalk.dim('Examples:')}
  