Bump kotlin-stdlib from 1.5.10 to 1.6.0 in /mapstruct-kotlin

Bumps [kotlin-stdlib](https://github.com/JetBrains/kotlin) from 1.5.10 to 1.6.0.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v1.6.0/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.5.10...v1.6.0)

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib
  dependency-type: direct:production
...

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

Author: dependabot[bot]

mapstruct-kotlin/pom.xml

@@ -12,7 +12,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
-        <kotlin.version>1.5.10</kotlin.version>
+        <kotlin.version>1.6.0</kotlin.version>
         <kotlin.compiler.jvmTarget>1.8</kotlin.compiler.jvmTarget>
         <mapstruct.version>1.5.2.Final</mapstruct.version>
     </properties>