Bump Tabulator version to 6.3

[philippjfr]

Bumps Tabulator version and includes this patch olifolkerd/tabulator#4598

[codecov]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 82.22%. Comparing base (f7dcc2c) to head (2f773ed).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
panel/compiler.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7419      +/-   ##
==========================================
- Coverage   82.22%   82.22%   -0.01%     
==========================================
  Files         337      337              
  Lines       50595    50599       +4     
==========================================
+ Hits        41604    41607       +3     
- Misses       8991     8992       +1     

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