Missing `userNotFound` field in "create/verify auth challenge" Cognito user pool events

[kikuomax]

According to AWS documentation, "create/verify auth challenge" Cognito user pool events should have userNotFound field, and they did as far as I tested on my AWS account. However, user_not_found fields are missing in:

• CognitoEventUserPoolsCreateAuthChallengeRequest
• CognitoEventUserPoolsVerifyAuthChallengeRequest

They should have user_not_found field similar to CognitoEventUserPoolsDefineAuthChallengeRequest.

userNotFound information helps us when we have to generate dummy challenges for non-existing users so that users' presence is not disclosed.

[github-actions]

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