allow DSL compilation warnings due to deprecated classes in fabric8

e.g. io.fabric8.kubernetes.api.model.policy.v1beta1.PodSecurityPolicy

https://github.com/fabric8io/kubernetes-client/blob/2f11261da823bc858658b3218c6f913af36a5342/kubernetes-model-generator/kubernetes-model-policy/src/main/java/io/fabric8/kubernetes/api/model/policy/v1beta1/PodSecurityPolicy.java#L86

DSLs/kubernetes/dsl/build.gradle.kts

@@ -1,3 +1,6 @@
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmCompilerOptions
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
+
 plugins {
     kotlin("jvm")
     `java-library`
@@ -23,6 +26,12 @@ val javadocJar by tasks.creating(Jar::class) {
     dependsOn(tasks.named("javadoc"))
 }
 
+tasks.withType<KotlinCompilationTask<KotlinJvmCompilerOptions>>().configureEach {
+    compilerOptions {
+        allWarningsAsErrors.set(false)
+    }
+}
+
 tasks.named<Jar>("jar") {
     manifest {
         attributes(mapOf("version" to archiveVersion))