fixup! update to Kotlin 2.0

Author: Jolanrensen

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ libsPublisher = "1.8.10-dev-43"
 
 # "Bootstrap" version of the dataframe, used in the build itself to generate @DataSchema APIs,
 # dogfood Gradle / KSP plugins in tests and idea-examples modules
-dataframe = "0.14.0-dev"
+dataframe = "0.13.1"
 
 # TODO 0.1.6 breaks kotlinter (which is no longer in use), https://github.com/Kotlin/dataframe/issues/598
 korro = "0.1.5"