checkstyle: fix incorrect import order

Author: Alex Klymenko

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

@@ -1,12 +1,12 @@
 package com.thealgorithms.sorts;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
 public class FlashSortTest extends SortingAlgorithmTest {
     @Override
     SortAlgorithm getSortAlgorithm() {