Remove authors from Cargo metadata (per RFC 3052)

[xtqqczze]

The authors field has been deprecated since rust-lang/cargo#15068.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.73%. Comparing base (6814180) to head (5f1c5e1).
⚠️ Report is 185 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1097      +/-   ##
==========================================
- Coverage   94.38%   93.73%   -0.66%     
==========================================
  Files          48       51       +3     
  Lines        6665     6468     -197     
==========================================
- Hits         6291     6063     -228     
- Misses        374      405      +31     

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[jswrenn]

RFC3052 makes the authors field optional, not deprecated. I think it's a nice way to give kudos.

[xtqqczze]

According to the Cargo docs, the authors field is deprecated. It has no clear meaning (original authors vs maintainers vs contributors) and doesn’t scale for a project of this size.