The graduation date on the recruitment resume is wrong, and then it has been hired by the company. Will your resume be filed? Do you think this is a question of personal integrity?
You can clarify the actual situation with the company. Employers mainly look at the highest academic qualifications when looking at resumes. If you have a postgraduate degree, people won't care too much about your undergraduate degree. If you are worried that your file is flawed, you can make it clear to the personnel department. That's not why you were hired, and you don't understand why you might be fired. You think too much.