checkstyle: fix formatting

Author: Alex Klymenko

src/main/java/com/thealgorithms/sorts/FlashSort.java

@@ -22,7 +22,7 @@
  * </ol>
  */
 public class FlashSort implements SortAlgorithm {
-    private double classificationRatio = 0.45;;
+    private double classificationRatio = 0.45;
 
     public FlashSort() {
     }

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

@@ -3,18 +3,17 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
 import org.junit.jupiter.api.DynamicTest;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestFactory;
 import org.junit.jupiter.api.function.Executable;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
 public class FlashSortTest extends SortingAlgorithmTest {
     private final FlashSort flashSort = new FlashSort();
 
@@ -87,5 +86,6 @@ private List<TestMethod> getTestMethodsFromSuperClass() {
         return testMethods;
     }
 
-    record TestMethod(Executable executable, String name) {}
+    record TestMethod(Executable executable, String name) {
+    }
 }