CI: We are not checking lint warnings

[tcharding]

While reviewing #237 I noticed that model::wallet::GetReceivedByAddress is missing derives but we added a lint check in #242. So I ran clippy locally and there are a tonne of lint warnings. We must not be running the linter in CI correctly - face palm.

[Abeeujah]

Hi, can I work on this? I do have extensive experience in setting up CI workflows and maintaining rust repositories; I would be happy to help here.

[tcharding]

Go wild. We don't assign issues, first come first served.