CompatHelper: bump compat for TensorKit to 0.16, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the TensorKit package from 0.15.2 to 0.15.2, 0.16.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

❌ Patch coverage is 82.85714% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 53.81%. Comparing base (dfa3646) to head (5d55cff).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/tensors/tensoroperations.jl	74.35%	10 Missing ⚠️
src/linalg/factorizations.jl	93.54%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #37      +/-   ##
==========================================
- Coverage   54.98%   53.81%   -1.17%     
==========================================
  Files          17       17              
  Lines        1475     1440      -35     
==========================================
- Hits          811      775      -36     
- Misses        664      665       +1     

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