build(deps): 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-bom` from 2.0.21 to 2.1.0
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/v2.1.0/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.0.21...v2.1.0)

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

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

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

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-bom
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-maven-allopen
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.jetbrains.kotlin:kotlin-maven-noarg
  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

@@ -25,7 +25,7 @@
     <spin.version>7.22.0</spin.version>
     <camunda-assert.version>${camunda.version.ce}</camunda-assert.version>
 
-    <kotlin.version>2.0.21</kotlin.version>
+    <kotlin.version>2.1.0</kotlin.version>
     <jgiven.version>2.0.0</jgiven.version>
     <kotlin.compiler.incremental>true</kotlin.compiler.incremental>