add Kotlin version to generated BCVProperties

Author: aSemy

modules/bcv-gradle-plugin/build.gradle.kts

@@ -129,6 +129,8 @@ publishing {
 val createBCVProperties by tasks.registering {
   val bcvVersion = libs.versions.kotlinx.bcv
   inputs.property("bcvVersion", bcvVersion)
+  val kotlinVersion = libs.versions.kotlinGradle
+  inputs.property("kotlinVersion", kotlinVersion)
 
   val generatedSource = layout.buildDirectory.dir("generated-src/main/kotlin/")
   outputs.dir(generatedSource)
@@ -146,6 +148,7 @@ val createBCVProperties by tasks.registering {
           |
           |internal object BCVProperties {
           |  const val bcvVersion: String = "${bcvVersion.get()}"
+          |  const val kotlinVersion: String = "${kotlinVersion.get()}"
           |}
           |
         """.trimMargin()

modules/bcv-gradle-plugin/src/main/kotlin/BCVProjectPlugin.kt

@@ -65,7 +65,7 @@ constructor(
       outputApiDir.convention(layout.projectDirectory.dir(API_DIR))
       projectName.convention(providers.provider { project.name })
       kotlinxBinaryCompatibilityValidatorVersion.convention(BCVProperties.bcvVersion)
-      kotlinCompilerEmbeddableVersion.convention("1.9.22")
+      kotlinCompilerEmbeddableVersion.convention(BCVProperties.kotlinVersion)
 
       // have to set conventions because otherwise .add("...") doesn't work
       ignoredMarkers.convention(emptyList())