chore: bump dev version to 3.1.0-alpha.0

[ValuedMammal]

Description

This PR bumps the package version in Cargo.toml from 3.0.0 to 3.1.0-alpha.0.

Checklists

All Submissions:

• I ran just p before pushing

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.04%. Comparing base (5df32ca) to head (c402a7a).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #441   +/-   ##
=======================================
  Coverage   80.04%   80.04%           
=======================================
  Files          24       24           
  Lines        5336     5336           
  Branches      242      242           
=======================================
  Hits         4271     4271           
  Misses        987      987           
  Partials       78       78           

Flag	Coverage Δ
rust	80.04% <ø> (ø)

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