Improve code coverage of src/info/repo/contributors.rs

[alessandroasm]

Part of task #700

[Byron]

I'd not be the best choice in reviewer for anything that doesn't touch gitoxide, but LGTM.

[spenserblack]

@Byron I think it just happens automatically because of this:

onefetch/.github/CODEOWNERS

Line 4 in c88541d

/src/info/repo @o2sh @Byron

Should the definition be changed?

[Byron]

Thanks for clarifying! It's interesting that the messaging around this that originates from GitHub is ambiguous at best or even misleading:

@alessandroasm requested your review on: #814 Improve code coverage of src/info/repo/contributors.rs as a code owner.

To me it really seems that alessandroasm triggered it intentionally even though it's happening automatically.

@spenserblack, if you see a way to narrow the code-ownership to files that deal with gitoxide that would be appreciated, but it wouldn't be a big deal to leave it as is either. Thank you.

[alessandroasm]

@Byron I didn't request a review manually, I think the repo is configured to automatically do that. :)

Conflicts with main branch resolved.