[TRI-5841] When used in CI the CLI should explain how to set the TRIGGER_ACCESS_TOKEN #2255

The CLI requires you to authenticate. On your local machine that involves jumping to the browser and back to create and store a Personal Access Token (PAT) on your machine.

In CI (like GitHub Actions) that's not possible, so you need to set the TRIGGER_ACCESS_TOKEN to a PAT you create.

We should automatically detect that process.env.CI is set and instead of trying to direct you to a browser we should explain you need to set the access token, and link to our docs. We could also link to the page in the dashboard where you create them (https://cloud.trigger.dev/account/tokens).

_TRI-5841