CompatHelper: bump compat for VectorInterface to 0.6 for package test, (keep existing compat)

[ITensorBot]

This pull request changes the compat entry for the VectorInterface package from 0.4.8, 0.5 to 0.4.8, 0.5, 0.6 for package test.
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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.54%. Comparing base (64750de) to head (43ba8b1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #213   +/-   ##
=======================================
  Coverage   81.54%   81.54%           
=======================================
  Files          25       25           
  Lines        2016     2016           
=======================================
  Hits         1644     1644           
  Misses        372      372           

Flag	Coverage Δ
docs	0.00% <ø> (ø)

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