Change: Update the severity ratings to match CVSS 3.1

[a-h-abdelsalam]

What

Update the severity ratings to add Critical.

Why

Needed to match CVSS 3.1

References

GEA-729
GEA-1295

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.50%. Comparing base (59da624) to head (029a036).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #946   +/-   ##
=======================================
  Coverage   87.50%   87.50%           
=======================================
  Files          35       35           
  Lines        1376     1376           
=======================================
  Hits         1204     1204           
  Misses        172      172           

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