Prohibit JVM target 1.6

But still compile stdlib, reflect, kotlin.test and scripting runtimes
with JVM target 1.6 to simplify migration from Kotlin 1.6 to 1.7.

 #KT-45165 Fixed

libraries/kotlin.test/annotations-common/build.gradle

@@ -7,6 +7,7 @@ JvmToolchain.updateJvmTarget(project, "1.6")
 dependencies {
     api kotlinStdlib("common")
     testApi project(":kotlin-test:kotlin-test-common")
+    kotlinCompilerClasspath project(':libraries:tools:stdlib-compiler-classpath')
 }
 
 tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinCompile) {
@@ -18,4 +19,4 @@ jar {
 }
 
 configureSourcesJar()
-configureJavadocJar()
+configureJavadocJar()