Make sure Gradle Module Metadata targets the appropriate JVM version

irrespective of the JDK used for the build (as this is
all Kotlin anyway).

Author: tbroyer

build.gradle.kts

@@ -22,6 +22,11 @@ dependencyLocking {
 
 group = "net.ltgt.gradle"
 
+// Make sure Gradle Module Metadata targets the appropriate JVM version
+tasks.withType<JavaCompile>().configureEach {
+    options.release.set(kotlinDslPluginOptions.jvmTarget.map { JavaVersion.toVersion(it).majorVersion.toInt() })
+}
+
 tasks.withType<KotlinCompile>().configureEach {
     kotlinOptions.allWarningsAsErrors = true
 }