updated CreateAndDetectLoop with test

Author: albinsabu2023

src/main/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoop.java

@@ -76,4 +76,5 @@ static boolean detectLoop(Node head) {
         }
         return false;
     }
+
 }

src/test/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoopTest.java

@@ -68,4 +68,5 @@ void testCreateLoopNoChangeForNonExistentPositions() {
         // Ensure no loop was created
         assertFalse(CreateAndDetectLoop.detectLoop(head), "No loop should be created if positions are out of bounds.");
     }
+
 }