CI improvements

[vnermolaev]

Addresses #106 by

• fixing CI failure.
• adjusting events on which CI runs.

Suggestions

• use nextest, it's much faster that simply cargo test.
• use taplo to introduce unified formatting also for toml files.

If you like any (or both) of these suggestion, I will add them to this PR as separate commits.

[ddrcode]

Thank you @vnermolaev . I will be reviewing the PRs this evening.

[ddrcode]

Adding taplo definitely makes sense to me. Having unified toml files helps. I am not sure about nexttest, as we don't have massive number of tests. But, I assume, you already have a good experience with it. If you see the value, I am fine to add it too.

If you are familiar with Nix, please add the new dependencies to flake.nix

[vnermolaev]

I am not sure about nexttest, as we don't have massive number of tests.

nextest only tests binaries, while test also executes doc-tests. With this in mind, I verified locally that savings using nextest are currently marginal (although the output is much nicer :). I am postponing it.

If you are familiar with Nix, please add the new dependencies to flake.nix

I am not familiar. TBH, I'd like to keep time investment in infra limited, IMO, the basics are covered with this setup.

Adding taplo definitely makes sense to me.

I added some basic formatting, feel free to tweak the config to your liking.

[vnermolaev]

👀

[ddrcode]

all good. Thank you for contribution!