Set high priority to the tasks for suspending unit test context (#197)

Author: ra1028

Sources/Atoms/Context/AtomTestContext.swift

@@ -52,15 +52,15 @@ public struct AtomTestContext: AtomWatchableContext {
         await withTaskGroup(of: Bool.self) { group in
             let updates = _state.makeUpdateStream()
 
-            group.addTask { @MainActor @Sendable in
+            group.addTask(priority: .high) { @MainActor @Sendable in
                 for await _ in updates {
                     return true
                 }
                 return false
             }
 
             if let duration {
-                group.addTask {
+                group.addTask(priority: .high) {
                     try? await Task.sleep(seconds: duration)
                     return false
                 }
@@ -121,7 +121,7 @@ public struct AtomTestContext: AtomWatchableContext {
 
             let updates = _state.makeUpdateStream()
 
-            group.addTask { @MainActor @Sendable in
+            group.addTask(priority: .high) { @MainActor @Sendable in
                 guard !check() else {
                     return false
                 }
@@ -136,7 +136,7 @@ public struct AtomTestContext: AtomWatchableContext {
             }
 
             if let duration {
-                group.addTask {
+                group.addTask(priority: .high) {
                     try? await Task.sleep(seconds: duration)
                     return false
                 }