Enable coroutines.

demo-application/build.gradle.kts

@@ -7,4 +7,6 @@ dependencies {
     implementation(kotlin("stdlib"))
     implementation(project(":demo-domain"))
     implementation("org.springframework:spring-context")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4")
+    implementation("com.michael-bull.kotlin-result:kotlin-result-coroutines:2.0.1")
 }