refactor: fix formatting

Author: alxkm

src/test/java/com/thealgorithms/others/ReverseStackUsingRecursionTest.java

@@ -4,8 +4,8 @@
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import org.junit.jupiter.api.Test;
 import java.util.Stack;
+import org.junit.jupiter.api.Test;
 
 public class ReverseStackUsingRecursionTest {
 
@@ -55,4 +55,4 @@ void testReverseWithNullStack() {
 
         assertTrue(actualMessage.contains(expectedMessage));
     }
-}
+}