fix G9Bc rule; Consonant + Virama + ZWNJ + Consonant pattern

[cometkim]

Reported from #124

InCB=None handling was missing, in both the Unicode test data and on my end. I manually added some counterexamples to cover those patterns.

[changeset-bot]

🦋 Changeset detected

Latest commit: d90bf7e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
unicode-segmenter	Patch

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (57d2f53) to head (d90bf7e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #127   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          922       925    +3     
=========================================
+ Hits           922       925    +3     

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[codspeed-hq]

Merging this PR will not alter performance

✅ 6 untouched benchmarks

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_{Comparing fix-zwnj-break (d90bf7e) with main (57d2f53)}