try skipping projects...

lib/build.gradle.kts

@@ -20,6 +20,7 @@ import org.jetbrains.dokka.gradle.DokkaTask
 plugins {
     buildsrc.conventions.lang.`kotlin-jvm`
     buildsrc.conventions.publishing
+    buildsrc.conventions.sonarqube
     id("com.github.ben-manes.versions")
 }
 
@@ -78,3 +79,7 @@ publishing {
         }
     }
 }
+
+sonar {
+    isSkipProject = true
+}