Reformat VampireNumberTest without * imports for asserts

Author: Shisoik

src/test/java/com/thealgorithms/maths/VampireNumberTest.java

@@ -2,7 +2,9 @@
 
 import static com.thealgorithms.maths.VampireNumber.isVampireNumber;
 import static com.thealgorithms.maths.VampireNumber.splitIntoSortedDigits;
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.Test;