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-maven-allopen` from 2.1.10 to 2.1.20

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

---
updated-dependencies:
- dependency-name: org.jetbrains.kotlin:kotlin-maven-allopen
  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]

Diff for: pom.xml

@@ -24,7 +24,7 @@
         <kotlin.compiler.apiVersion>2.1</kotlin.compiler.apiVersion>
         <kotlin.compiler.languageVersion>2.1</kotlin.compiler.languageVersion>
         <kotlin.compiler.jvmTarget>21</kotlin.compiler.jvmTarget>
-        <kotlin.version>2.1.10</kotlin.version>
+        <kotlin.version>2.1.20</kotlin.version>
         <logback.version>1.5.17</logback.version>
         <okhttp3.version>4.12.0</okhttp3.version>
     </properties>