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@xajik0@gmail.com go to https://appleid.apple.com/ and log in with your appleid credentials. Once you are logged in scroll down to Devices section,find the simulator you are using, click on it, and when popup appears, click on "Remove from account" button. Now open your simulator (you will be asked to confirm apple id password on your device), and try using "Sign in with Apple" functionality again. So this is just a short term solution, after a while you will need to repeat these steps.

My team is facing the same issue. We found workaround by loggin in to appleid, and removing simulator from devices, and sign in with apple will work until you have to use it again, then you need to remvove simulator AGAIN.