checkstyle: fix import ordering

Author: Alex Klymenko

src/test/java/com/thealgorithms/sorts/CountingSortTest.java

@@ -2,9 +2,9 @@
 
 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 
+import java.util.stream.Stream;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
-import java.util.stream.Stream;
 
 public class CountingSortTest {