Only support Kotlin 2.1

[TheKinrar]

As an alternative to #411, this PR removes support for Kotlin < 2.1 and simply requires Kotlin 2.1 going forward. I guess this might not be what you want, but works for me so I'm just pushing the (very minor) changes here in case it's of interest to someone!

I also have packages from this PR available on my repo: https://github.com/TheKinrar/jte

[casid]

Thanks @TheKinrar for the PR. Awesome, that makes everything a bit easier.

@marcospereira, @checketts what do you think, shall we move forward with this, so that we can have a release that works with the latest and greatest Kotlin again?

[checketts]

Thanks for the packages @TheKinrar . I was able to pull them down and verify that my project is working with Kotlin 2.1.0 and JTE.

So @casid yes, please move forward with this!

[casid]

@TheKinrar I think the Kotlin version needs to be adjusted in the following test gradle projects as well.

jte-runtime-cp-test-models-gradle-kotlin
jte-runtime-cp-test-gradle-kotlin
jte-runtime-test-gradle-kotlin-convention
jte-runtime-cp-test-gradle-kotlin-convention
kte-runtime-test-gradle-kotlin-convention

After that's fixed, I think we should merge and release a new minor jte version.

[TheKinrar]

@casid Gradle decided to change the line endings of the gradlew.bat files when I updated it, thus the now significant diff although I did not change much. I can restore the old gradlew files if needed. Old Gradle versions caused a conflict because of their old embedded Kotlin version.

[casid]

Looks good, I'm merging this now!

[GregoryBevan]

Hello,

Thank you for the version upgrade of Kotlin. Have you scheduled a release of JTE with this correction ?

[JordanPlayz158]

Hello,

Thank you for the version upgrade of Kotlin. Have you scheduled a release of JTE with this correction ?

Until they have an official JTE release with this change, this should work for you #412 (comment)