If you claimed the EIC and ACTC on the tax return that you filed, you do not have to amend it. The IRS will recalculate the EIC and ACTC when they recalculate the unemployment income.
The only time it's necessary to amend because of the unemployment exclusion is if the reduction of your Adjusted Gross Income makes you eligible for a credit that you did not claim on the return that you filed. But that is not your situation.
Because you are married filing jointly, and claimed credits that are affected by the change in AGI, your tax return is one of the ones that are more complex to recalculate. Therefore you should not expect to get your refund until sometime in the summer.