fails with gradle 8.13 with non public 'execute' method

[bertvanbrakel]

When using this with gradle 8.13, I get:

`Exception is:

org.gradle.internal.execution.WorkValidationException: A problem was found with the configuration of task ':my-app:mockmpExtractExpectKt' (type 'MocKMPExtractExpectKt').

  - Method 'execute' is private and annotated with @TaskAction.
    Reason: Annotations on private methods are ignored.

    Possible solutions:
      1. Make the method public.
      2. Annotate the public version of the method.`

fix is to make the 'execute' method public in https://github.com/kosi-libs/MocKMP/blob/main/mockmp/mockmp-gradle-plugin/src/main/kotlin/org/kodein/mock/gradle/MocKMPExtractExpectKt.kt

[bertvanbrakel]

Note that I have all the gradle caching features enabled