Database upgrade to remove site from permissions

[hkethi002]

Fixes #916

Review Checklist

• Tests were added to cover all code changes
• Documentation was added / updated
• Code and tests follow standards in CONTRIBUTING.md

[codecov-io]

Codecov Report

Merging #935 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #935   +/-   ##
=======================================
  Coverage   90.19%   90.19%           
=======================================
  Files          48       48           
  Lines        6413     6413           
=======================================
  Hits         5784     5784           
  Misses        629      629

Flag	Coverage Δ
#python	90.19% <ø> (ø)	⬆️

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[nagem]

LGTM, nice reuse of the the 32nd upgrade script.