Abandoned SBT plugins (sbt-web)

Trying to make the latest versions of sbt-guardrail and sbt-microsites cohabit in a build, sbt fails to import the build because of the following version incompatibility:

[error]         * org.scala-lang.modules:scala-java8-compat_2.12:1.0.0 (early-semver) is selected over 0.8.0
[error]             +- dev.guardrail:guardrail-core_2.12:0.65.2           (depends on 1.0.0)
[error]             +- com.typesafe.akka:akka-actor_2.12:2.5.17           (depends on 0.8.0)

It appears the old Akka version that is needed comes from GitHub - sbt/sbt-web: Library for building sbt plugins for the web

The last release is quite old (November 2018) and a PR was actually merged (but never released) in the meantime to remove Akka from the dependencies of the plugin.

Looking into the issues, there appears to be quite some plugins in the same state: Migrate repository away from travis-ci.org · Issue #180 · sbt/sbt-web · GitHub

Would there be a way to get a new version of sbt-web released? Can I help in any way?