Kotlin 2.1.20. Update status badge

Author: turansky

README.md

@@ -1,6 +1,6 @@
 [![JetBrains team project](https://jb.gg/badges/team.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 [![CI](https://github.com/JetBrains/kotlin-wrappers/workflows/CI/badge.svg)](https://github.com/JetBrains/kotlin-wrappers/actions)
-[![CI-K2.1](https://github.com/JetBrains/kotlin-wrappers/workflows/CI-K2.1/badge.svg)](https://github.com/JetBrains/kotlin-wrappers/actions)
+[![CI-K2.1.20](https://github.com/JetBrains/kotlin-wrappers/actions/workflows/ci-K2120.yml/badge.svg)](https://github.com/JetBrains/kotlin-wrappers/actions)
 [![Maven Central](https://img.shields.io/maven-central/v/org.jetbrains.kotlin-wrappers/kotlin-wrappers-bom)](https://mvnrepository.com/artifact/org.jetbrains.kotlin-wrappers/kotlin-wrappers-bom)
 [![Kotlin](https://img.shields.io/badge/kotlin-2.1.0-blue.svg?logo=kotlin)](http://kotlinlang.org)
 [![Slack channel](https://img.shields.io/badge/chat-slack-green.svg?logo=slack)](https://kotlinlang.slack.com/messages/react/)