Create FatJar-library from module with Gradle-Kotlin and place it into a separate extension-directory

Question

My goal is to create a FatJar from the module "custom-wiremock-extension" and automatically place it in the extensions folder of Wiremock.

My project is structured in the following way:

.
├── ...
│
├── e2e (module)
│   ...
│   └── build.gradle.kts
│
├── custom-wiremock-extension (module)
│   ...
│   └── build.gradle.kts
│
├── src
│   ...
│
├── wiremock
│   ...
│   └── extensions
│
├── build.gradle.kts
└── settings.gradle.kts

This is the build.gradle.kts of "custom-wiremock-extension"-module:

import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    alias(libs.plugins.kotlin.jvm)
    kotlin("plugin.serialization") version "1.8.10"
    id("com.github.johnrengelman.shadow") version "8.1.0"
}

apply(from = "${rootProject.rootDir}/gradle/scripts/repositories.gradle.kts")

dependencies {
   ...
}

group = "my.wiremock.extension"
version = "1.0-SNAPSHOT"

kotlin {
    jvmToolchain {
        this.languageVersion.set(JavaLanguageVersion.of(17))
    }
}

tasks.withType<KotlinCompile>().configureEach {
    kotlinOptions {
        freeCompilerArgs = listOf("-Xjsr305=strict", "-Xjvm-default=all-compatibility")
        jvmTarget = "17"
        apiVersion = "1.7"
    }
}

val extensionJar by tasks.registering(ShadowJar::class) {
    archiveBaseName.set("custom-wiremock-extension")
    archiveClassifier.set("sources")
}

artifacts {
    archives(extensionJar)
}

FatJar creation is working. But is it possible to automate the relocation within the build.gradle.kts?