[kotlin-wiremock] New generator for generating WireMock stubs using Kotlin (#18705)

* [kotlin] Target correct library in jvm-spring-webclient sample

* [kotlin] Fixed warning in jvm-spring-restclient

* [kotlin-wiremock] added generator and sample

* [kotlin-wiremock] First version with petstore

* [kotlin-wiremock] Small typo

* [kotlin-wiremock] Added echo-api test

* [kotlin-wiremock] Split stub and stub builder

* [kotlin-wiremock] Added default values and jackson annotations to models

* [kotlin-wiremock] Small default value fix

* [kotlin-wiremock] Use Gradle wrapper version in samples-kotlin-server GitHub workflow

* [kotlin-wiremock] Added default artifact name

* [kotlin-wiremock] Added kotlin docs

* [kotlin-wiremock] Fixed capitalization in kotlin docs

* [kotlin-wiremock] Added kotlin-wiremock echo_api sample to GitHub workflow

* [kotlin-wiremock] Added new generator to README.md

* [kotlin-wiremock] Generated docs

* [kotlin-wiremock] Generated docs (missed commit)

* [kotlin-wiremock] Explicit Gradle wrapper version in kotlin server generators

* Revert "[kotlin-wiremock] Explicit Gradle wrapper version in kotlin server generators"

This reverts commit 71e1c47def.

* [kotlin-wiremock] Revert Gradle in workflow samples-kotlin-server and moved kotlin-wiremock samples to separate workflow

* [kotlin-wiremock] Use Java 11 instead of Java 8

* [kotlin-wiremock] ensure-up-to-date

samples/server/echo_api/kotlin-wiremock/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists