Ruthless cannot save build log to file

[LajosCseppento]

This is a known issue and waiting for a Gradle release. See also gradle/gradle#20151

Ruthless sometimes might send a warning that it cannot save build output to file. This is due to Gradle's buildFinished deprecation in Gradle 7.4. Ruthless overcomes this by using a BuildService, however, at this the point is not possible cannot access Settings or Gradle objects from shared build services. To share the Settings object with the build service, Ruthless is using a static in-memory map, which to my knowledge works, but probably not 100% reliable as it is not using the Gradle API.

Related to #35