Merge pull request #173 from openapi-processor/dependabot/gradle/org.jetbrains.kotlin-kotlin-gradle-plugin-2.2.20

Bump org.jetbrains.kotlin:kotlin-gradle-plugin from 2.2.10 to 2.2.20

Author: hauner

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ test-jdk = "17"
 build-plugins = "2025.9"
 
 # using the embedded kotlin version of gradle to avoid mixed versions
-kotlin = "2.2.10"
+kotlin = "2.2.20"
 checker = "3.51.0"
 checkerp = "0.6.56"
 jacoco = "0.8.11"