Fix build

Author: ondrejmirtes

tests/Mockery/IsolatedMockeryTest.php

@@ -28,12 +28,12 @@ public function testOverloadMock(): void
 
 	private function requireFoo2(Foo2 $foo): void
 	{
-		echo 'test';
+		usleep(1);
 	}
 
 	private function requireFoo3(Foo3 $foo): void
 	{
-		echo 'test';
+		usleep(1);
 	}
 
 }

tests/Mockery/MockeryTest.php

@@ -135,17 +135,17 @@ public function testNamedMock(): void
 
 	private function requireFoo(Foo $foo): void
 	{
-		echo 'test';
+		usleep(1);
 	}
 
 	private function requireBaz(Baz $baz): void
 	{
-		echo 'test';
+		usleep(1);
 	}
 
 	private function requireBuzz(Buzz $buzz): void
 	{
-		echo 'test';
+		usleep(1);
 	}
 
 }