Add new Split overload for C# 14

[viceroypenguin]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 1.33%. Comparing base (3d3ca7f) to head (aed5de9).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
Source/SuperLinq/Split.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #789      +/-   ##
=========================================
- Coverage    1.33%   1.33%   -0.01%     
=========================================
  Files         249     249              
  Lines        8926    8927       +1     
  Branches     1642    1642              
=========================================
  Hits          119     119              
- Misses       8794    8795       +1     
  Partials       13      13              

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