chore: bump package to 3.1.0-dev

[erisu]

Platforms affected

n/a

Motivation and Context

Prepare for minor release

Description

bump package version to 3.1.0-dev

Testing

n/a

Checklist

• [ ] I've run the tests to see all new and existing tests pass
• [ ] I added automated test coverage as appropriate for this change
• [ ] Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• [ ] If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• [ ] I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

Merging #99 (09732db) into master (f974d86) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #99   +/-   ##
=======================================
  Coverage   93.33%   93.33%           
=======================================
  Files           1        1           
  Lines          60       60           
=======================================
  Hits           56       56           
  Misses          4        4           

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