Fix Gradle plugin publishing, removed stdlib-jdk8

Author: wodrobina

restdocs-api-spec/build.gradle.kts

@@ -21,7 +21,6 @@ the<DependencyManagementExtension>().apply {
 
 dependencies {
     implementation(kotlin("reflect"))
-    /
 
     implementation("org.springframework.restdocs:spring-restdocs-core")
     implementation("org.springframework.boot:spring-boot-starter-web")