style: fix test file indentation (final)

Author: prashantpiyush1111

src/test/java/com/thealgorithms/datastructures/queues/ThreadSafeQueueTest.java

@@ -1,6 +1,10 @@
 package com.thealgorithms.datastructures.queues;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
 import org.junit.jupiter.api.Test;
 
 class ThreadSafeQueueTest {