Migrating to the new coroutines 1.6 test APIs

runTest.kt.diff

// Copyright 2022 Google LLC.	
// SPDX-License-Identifier: Apache-2.0

@Test
-fun test() {
-    coroutineRule.runBlockingTest {
-       // Test coroutine things
-    }
-}
+fun test() = runTest {
+    // Test coroutine things
+}