fix: delete go.sum, change go.mod:

  github.com/aws/aws-sdk-go-v2 latest
  github.com/aws/aws-sdk-go-v2/config latest
  github.com/aws/aws-sdk-go-v2/credentials latest
  github.com/aws/aws-sdk-go-v2/service/iot latest
  github.com/aws/aws-sdk-go-v2/service/iotdataplane latest

go mod tidy go build