How do I update an existing connected credit card? (for importing transactions)

AMBwave

My bank replaced my old credit card number with a completely new credit card number. That new credit card does not show up in Banking > Connected Accounts > Bank name > (new cc is not listed)

How do I either change the old number to the new one?
OR
How do I add the new account so that it's part of my existing connected account.

I also tried Accounting > Chart of Accounts > Add a New Account... but that doesn't give me a way to connect it to the bank for automatically importing transactions.