Add JVM target bytecode version 20

#KT-57495 Fixed

compiler/config.jvm/src/org/jetbrains/kotlin/config/JvmTarget.kt

@@ -36,6 +36,7 @@ enum class JvmTarget(
     JVM_17("17", Opcodes.V16 + 1),
     JVM_18("18", Opcodes.V16 + 2),
     JVM_19("19", Opcodes.V16 + 3),
+    JVM_20("20", Opcodes.V16 + 4),
     ;
 
     override fun toString() = description
@@ -61,7 +62,7 @@ enum class JvmTarget(
             values().asList() - JVM_1_6
 
         const val SUPPORTED_VERSIONS_DESCRIPTION =
-            "1.8, 9, 10, ..., 19"
+            "1.8, 9, 10, ..., 20"
 
         init {
             check(SUPPORTED_VERSIONS_DESCRIPTION == "1.8, 9, 10, ..., ${values().last().description}") {