chore: update test snapshot (#5360)

Author: eduardoboucas

tests/integration/snapshots/320.command.help.test.cjs.md

@@ -35,6 +35,9 @@ Generated by [AVA](https://avajs.dev).
       $ lm           Handle Netlify Large Media operations␊
       $ login        Login to your Netlify account␊
       $ open         Open settings for the site linked to the current folder␊
+      $ serve        (Beta) Build the site for production and serve locally. This␊
+                     does not watch the code for changes, so if you need to rebuild␊
+                     your site then you must exit and run \`serve\` again.␊
       $ sites        Handle various site operations␊
       $ status       Print status information␊
       $ switch       Switch your active Netlify account␊