build(deps): Bump kotlin.version from 2.2.20 to 2.2.21

Bumps `kotlin.version` from 2.2.20 to 2.2.21.

Updates `org.jetbrains.kotlin:kotlin-bom` from 2.2.20 to 2.2.21
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v2.2.20...v2.2.21)

Updates `org.jetbrains.kotlin:kotlin-maven-plugin` from 2.2.20 to 2.2.21

Updates `org.jetbrains.kotlin:kotlin-maven-allopen` from 2.2.20 to 2.2.21

Updates `org.jetbrains.kotlin:kotlin-maven-noarg` from 2.2.20 to 2.2.21

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-bom
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-maven-plugin
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-maven-allopen
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.jetbrains.kotlin:kotlin-maven-noarg
  dependency-version: 2.2.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -198,7 +198,7 @@
         <jacoco-maven-plugin.version>0.8.13</jacoco-maven-plugin.version>
         <jreleaser-maven-plugin.version>1.19.0</jreleaser-maven-plugin.version>
         <junit.version>6.0.0</junit.version>
-        <kotlin.version>2.2.20</kotlin.version>
+        <kotlin.version>2.2.21</kotlin.version>
         <logback.version>1.5.19</logback.version>
         <neo4j.edition>enterprise</neo4j.edition>
         <neo4j-java-driver.version>6.0.1</neo4j-java-driver.version>