move the error for github apps pipeline (#38135)

script/helpers/github.js

@@ -6,13 +6,6 @@ if (!process.env.GITHUB_TOKEN) {
   dotenv.config()
 }
 
-// check for required PAT
-if (!process.env.GITHUB_TOKEN) {
-  throw new Error(
-    'Error! You must have a GITHUB_TOKEN set in an .env file to use the GitHub REST API.'
-  )
-}
-
 // this module needs to work in development, production, and GitHub Actions
 //
 // GITHUB_TOKEN comes from one of the following sources: