chore(dependencies): roll back the most recent kork bump (#3558)
chore(dependencies): roll back the most recent kork bump (#3558)

This causes a weird NPE in Gradle that manifests like this:
> $ ./gradlew :orca-api-test:dependencies --configuration runtimeClasspath
> Execution failed for task ':orca-api-test:dependencies'.
> > Could not resolve all dependencies for configuration ':orca-api-test:runtimeClasspath'.
>   > Problems reading data from Binary store in /tmp/gradle731362267057772455.bin (exist: true)

@robfletcher is working on a fix, but I'll rollback in the meantime.
robfletcher/orca,robfletcher/orca,ttomsu/orca,ajordens/orca,ttomsu/orca,robfletcher/orca,ttomsu/orca,spinnaker/orca,ajordens/orca,robfletcher/orca,ajordens/orca,spinnaker/orca,ttomsu/orca,spinnaker/orca,ajordens/orca