chore(deps): bump kotlin.version from 2.1.10 to 2.1.20

Bumps `kotlin.version` from 2.1.10 to 2.1.20.

Updates `org.jetbrains.kotlin:kotlin-bom` from 2.1.10 to 2.1.20
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.1.10...v2.1.20)

Updates `org.jetbrains.kotlin:kotlin-maven-plugin` from 2.1.10 to 2.1.20

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -39,7 +39,7 @@
 		<maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
-		<kotlin.version>2.1.10</kotlin.version>
+		<kotlin.version>2.1.20</kotlin.version>
 		<kotlin.coroutine.version>1.10.1</kotlin.coroutine.version>
 
 		<http4k.version>6.1.0.1</http4k.version>