refactoring: adjusting test functions to the naming conventions in class StudentTest

src/test/java/org/example/StudentTest.java

@@ -71,7 +71,7 @@ class StudentTest {
 
 
     @Test
-    void printStudentInfo() {
+    void testPrintStudentInfo() {
         Student student = sampleStudent;
 
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();