Add support for LogQL

[QuentinBisson]

Hello, first of all, I would like to say that this is a fantastic that you've build and we use it for our alerts.

As we would like to standardize this a bit more, we would really love to be able to use this on logql queries. Do you think this is something you would like to support?

I might be okay by providing a PR if you think that's fine :) I might need your support on it though

[prymitive]

As per note on https://cloudflare.github.io/pint/#requirements - pint supports what we use and need it to support. As of today we don't use LogQL and so I'm not going to spend any time on adding support for it until my manager tells me that we must add it.
The question if that should be added to pint simply because LogQL and PromQL share a a lot of similarities in their syntax is secondary but I'm not convinced it would be a yes.