Bump kotlin.version from 2.0.21 to 2.1.0

Bumps `kotlin.version` from 2.0.21 to 2.1.0.

Updates `org.jetbrains.kotlin:kotlin-stdlib-jdk8` from 2.0.21 to 2.1.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.21...v2.1.0)

Updates `org.jetbrains.kotlin:kotlin-test` from 2.0.21 to 2.1.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.21...v2.1.0)

Updates `org.jetbrains.kotlin:kotlin-test-junit` from 2.0.21 to 2.1.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.21...v2.1.0)

Updates `org.jetbrains.kotlin:kotlin-maven-plugin` from 2.0.21 to 2.1.0

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-stdlib-jdk8
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-test
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-test-junit
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -104,7 +104,7 @@
     <java.version>17</java.version>
     <junit-jupiter.version>5.7.2</junit-jupiter.version>
     <junit.version>4.13.2</junit.version>
-    <kotlin.version>2.0.21</kotlin.version>
+    <kotlin.version>2.1.0</kotlin.version>
     <kotlin.compiler.jvmTarget>${java.version}</kotlin.compiler.jvmTarget>
     <kotlin.compiler.languageVersion>1.9</kotlin.compiler.languageVersion>
     <license-maven-plugin-git.version>4.6</license-maven-plugin-git.version>