Upstream of updates and misc improvements

[fabianhjr]

Upgrades to Scala 2.13 and latest libs (twitterVersion to latest 22.12.0)

[davoclavo]

Hello! here is a detailed list of all the changes:

Most importantly: Support Prometheus labels and values (metadata for metrics)

Given that the way this library currently works of exporting Twitter metrics to Prometheus metrics we had to piggyback on Twitter metric names to include the list of labels and values as URL parameters, and parse them out and expose them with the right format for Prometheus. This implementation is backwards compatible with existing integrations, and in order to be able to expose metadata to prometheus, just use the toMetricName method that will add a List[(String, String)] as URL parameters to the twitter metric name.

Misc changes:

• Add support for Scala 2.13.10
• Update sbt to 1.8.0
• Update Twitter libraries to 22.12.0
• Update Prometheus client to 0.16.0
• Update Logback classic to 1.4.5
• Update scalatest to 3.2.14
• Replace class + object to a case class to have an automatically generated constructor companion object.