Fixed a badge w/ a Kotlin version

Author: fzhinkin

README.md

@@ -4,7 +4,7 @@
 [![JetBrains incubator project](https://jb.gg/badges/incubator.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat)](http://www.apache.org/licenses/LICENSE-2.0)
 [![Download](https://img.shields.io/maven-central/v/org.jetbrains.kotlinx/kotlinx-io-core)](https://central.sonatype.com/artifact/org.jetbrains.kotlinx/kotlinx-io-core/)
-[![Kotlin](https://img.shields.io/badge/kotlin-1.9.10-blue.svg?logo=kotlin)](http://kotlinlang.org)
+[![Kotlin](https://img.shields.io/badge/kotlin-1.9.22-blue.svg?logo=kotlin)](http://kotlinlang.org)
 [![TeamCity build](https://img.shields.io/teamcity/build/s/KotlinTools_KotlinxIo_BuildAggregated.svg?server=http%3A%2F%2Fteamcity.jetbrains.com)](https://teamcity.jetbrains.com/viewType.html?buildTypeId=KotlinTools_KotlinxIo_BuildAggregated&guest=1)
 [![KDoc link](https://img.shields.io/badge/API_reference-KDoc-blue)](https://fzhinkin.github.io/kotlinx-io-dokka-docs-preview/)