minor: added new line

Author: Rosander0

src/test/java/com/thealgorithms/strings/TitleCaseTest.java

@@ -2,6 +2,7 @@
 // author: Vraj Prajapati @Rosander0
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import org.junit.jupiter.api.Test;
 
 public class TitleCaseTest {