Added getCourses for the class Student

src/main/java/org/example/Student.java

@@ -55,6 +55,10 @@ public class Student {
         this.studentRole = studentRole;
     }
 
+    public List<Course> getCourses() {
+        return courses;
+    }
+
     /**
      * Prints the basic information of the student in the console.
      * This methods displays the student´s ID, name and role, providing a quick overview of the student´s identity