Feature request: replace `ScalaTestAction` with Gradle native test actions

[rpalcolea]

Hi,

While taking a look at implementation details of the plugin, found that tests are executed on its own JavaExec process.

One of the downsides of using a custom JavaExec is that the test tasks are not compatible with several Gradle and Gradle Enterprise features:

• Flaky test detection via test-retry-gradle-plugin
• Test Distribution
• Predictive Test Selection

Overall, these features are huge build performance boosters that unfortunately Today folks using the plugin can not take advantage of them

[maiflai]

thanks - have you tried https://github.com/helmethair-co/scalatest-junit-runner?