Fix broken code coverage

[nickolay]

As noted in https://github.com/andygrove/sqlparser-rs/pull/159 , cargo coveralls fails in CI with an error due to a change in Cargo.lock format. This is supposed to be fixed in roblabla/cargo-travis#66 , but simply upgrading to that version didn't work for me resulting in linking errors. I did not investigate further.

[Dandandan]

What about using https://github.com/xd009642/tarpaulin ?

[nickolay]

I don't know the difference. Whatever works and produces usable coverage info will do, I suppose. The issue is someone willing to put in the work!

[maxcountryman]

I'm curious about GitHub Actions as well: I've recently switched over some repos from Travis to Actions and so far it seems to be a nice change. In particular, the configuration is a little more straightforward and there's a nice ecosystem of Actions that are easy to use.

[maxcountryman]

I didn't realize there was already a GitHub Actions workflow! 🙂 I put together a quick refactor in case that's a direction you want to go in.