Fix unbounded path label

[vishalegbert-ttd]

No description provided.

[aulme]

Thanks for fixing, happy to merge as is.

I think it would still be better if we scraped routes from the router as this approach won't work if we use nested routers and someone may forget adding their new paths to the enum resulting in no obvious failure but no metrics. Don't know if you've tried looking at this, eg the way it's described here.

[vishalegbert-ttd]

Thanks @aulme , yes I thought about it. But this is now an established pattern in Operator already: https://github.com/IABTechLab/uid2-operator/blob/main/src/main/java/com/uid2/operator/vertx/Endpoints.java and the routes object isn't exposed to where the metric filtering rule is defined

There's a future ticket to improve the test coverage of this metric filtering, we might try to use the registered routes during that ticket