When a valid authorization is stored in the database the authorization column attemptedAt is set based on the challenge `Validated` value. Use this value in `checkAuthorizationsCAA` to determine if an authorization is sufficiently stale to need a recheck of the CAA DNS record. Error if the time is nil. Keeps old codepath for safety check and increments a metric if the old codepath is used.  | 
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| .. | ||
| ca.go | ||
| mocks.go | ||