using lowercase for installation

[fcmdias]

Hi there, I believe we should be using go get github.com/data-dog/go-sqlmock

I'm using https://github.com/google/go-licenses to print out the licenses of a project I'm working on but there's an error getting github.com/DATA-DOG/go-sqlmock. First thing, we thought was the a problem with the regex. But I think a better way to solve this is to import github.com/data-dog/go-sqlmock instead github.com/DATA-DOG/go-sqlmock so we're using lowercase which is what go prefers.

fyi I'm using a mac. and go v1.20