checkstyle: fix import order

Author: alxkm

src/test/java/com/thealgorithms/datastructures/bag/BagTest.java

@@ -7,8 +7,8 @@
 import static org.junit.jupiter.api.Assertions.fail;
 
 import com.thealgorithms.datastructures.bags.Bag;
-import org.junit.jupiter.api.Test;
 import java.util.Iterator;
+import org.junit.jupiter.api.Test;
 
 class BagTest {