Error reporting after hitting the tunnels/session limit is lacking

[jrobsonchase]

What happened

The first time the ingress controller tries to start a tunnel that puts it over the tunnels/agent session limit, it gets this error:

Your account may not run more than <number> tunnels over a single ngrok agent session.

ERR_NGROK_324

This flies by pretty quickly, and subsequent errors are just

2023-07-03T19:56:50Z	ERROR	controllers.tunnel	Reconciler error	{"reconcileID": "b77b8eb4-7232-41cb-891f-c4afb89e07e8", "error": "failed to start tunnel: EOF"}

Which is pretty unhelpful.

What you think should happen instead

Might be nice if we detected that error, and stopped trying to start new tunnels/surfaced it repeatedly?

How to reproduce

Try to start a few e2e fixtures on a free account.