Add tests for array rotation edge case

Author: Bhanubasyan

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

@@ -77,4 +77,4 @@ void shouldHandleNegativeRotation() {
 
         assertArrayEquals(new int[] {4, 3, 5, 1, 2}, values);
     }
- }
+}