[Build] Add dependency on :core:descriptors.runtime to spec tests

This is needed to run those tests via JPS

compiler/tests-spec/build.gradle.kts

@@ -20,6 +20,7 @@ dependencies {
     api("org.jsoup:jsoup:1.14.2")
     if (isIdeaActive) testRuntimeOnly(files("${rootProject.projectDir}/dist/kotlinc/lib/kotlin-reflect.jar"))
     testRuntimeOnly(project(":kotlin-reflect"))
+    testRuntimeOnly(project(":core:descriptors.runtime"))
 
     testApiJUnit5(vintageEngine = true)
 }