build(deps): bump github.com/aws/aws-sdk-go-v2/service/cognitoidentity from 1.27.7 to 1.27.8 in /aws in the dependencies group

build(deps): bump github.com/aws/aws-sdk-go-v2/service/cognitoidentity from 1.27.7 to 1.27.8 in /aws in the dependencies group #639