Bump kotlin from 2.2.0 to 2.2.20

Bumps `kotlin` from 2.2.0 to 2.2.20.

Updates `org.jetbrains.kotlin.plugin.atomicfu` from 2.2.0 to 2.2.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

Updates `org.jetbrains.kotlin.jvm` from 2.2.0 to 2.2.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

Updates `org.jetbrains.kotlin.multiplatform` from 2.2.0 to 2.2.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

Updates `org.jetbrains.kotlin.plugin.serialization` from 2.2.0 to 2.2.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](https://github.com/JetBrains/kotlin/commits)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin.plugin.atomicfu
  dependency-version: 2.2.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.jvm
  dependency-version: 2.2.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.multiplatform
  dependency-version: 2.2.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin.plugin.serialization
  dependency-version: 2.2.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle.properties

@@ -1,12 +1,9 @@
 # Extra Gradle memory required for Dokka plugin
-org.gradle.jvmargs=-Xmx4g "-XX:MaxMetaspaceSize=512m"
+org.gradle.jvmargs=-Xmx8g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
 
 org.gradle.caching=true
 org.gradle.configuration-cache=true
 
-# The extra memory seems necessary for Kotlin/JS compilation
-kotlin.daemon.jvmargs=-Xmx4g
-
 kotlin.native.ignoreDisabledTargets=true
 
 org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ binary-compatibility-validator = "0.18.1"
 dokka = "2.0.0"
 hildan-kotlin-publish-plugin = "1.7.0"
 hildan-github-changelog-plugin = "2.2.0"
-kotlin = "2.2.0"
+kotlin = "2.2.20"
 kotlinpoet = "2.2.0"
 kotlinx-atomicfu = "0.29.0"
 kotlinx-coroutines = "1.10.2"