[HttpKernel] Change exception message in case no controller found

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11754
| License       | MIT
| Doc PR        | n/a

Change the NotFoundHttpException message.
I do agree with you here. This message was tweaked in 20e31cd a long time ago and I did not catch this at that time.

The problem is in being as generic as possible (not leaking information from other layers) and be as precise as possible for the end user, not sure what to do here. The current message is ok-ish to me in this regard as using a rouring configuration is probably what almost everyone does when using HttpKernel.