[core] Add `kotlinx-coroutines-debug` in mirai-core-utils

mirai-core-utils/build.gradle.kts

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2022 Mamoe Technologies and contributors.
+ * Copyright 2019-2023 Mamoe Technologies and contributors.
  *
  * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
  * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
@@ -66,6 +66,7 @@ kotlin {
 
         findByName("jvmTest")?.apply {
             dependencies {
+                implementation(`kotlinx-coroutines-debug`)
                 runtimeOnly(files("build/classes/kotlin/jvm/test")) // classpath is not properly set by IDE
             }
         }