[FEATURE] Throw blocking configurationError for Linear webhooks

[malexanderlim]

As of 12/5/2024, creating and managing webhooks requires admin permissions for Linear.

We need to update our triggers to ensure that users are notified earlier, before they attempt to deploy a webhook.

1. Use an alert prop with error setting if user is not an admin - "You must have an admin role to create or manage webhooks. See the Linear documentation for details."
2. Throw a blocking configurationError if a user attempts to configure a webhook, without having an admin role.
3. Update both linear_app (API Key) and linear (OAuth)

  "query": `{ 
    user(id: "me") {
      admin
    }
  }`

The above graphQL query should return a boolean for the admin field which we can then use to throw the config error.

[vunguyenhung]

Hi everyone, all test cases are passed! Ready for release!

Test report
https://vunguyenhung.notion.site/FEATURE-Throw-blocking-configurationError-for-Linear-webhooks-157bf548bb5e81d7ad8ed878477c2b5d