CompatHelper: bump compat for FastGaussQuadrature to 0.5, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the FastGaussQuadrature package from 0.4 to 0.4, 0.5.
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

Base: 79.64% // Head: 79.64% // No change to project coverage 👍

Coverage data is based on head (1c5a586) compared to base (3cc297c).
Patch has no changes to coverable lines.

❗ Current head 1c5a586 differs from pull request most recent head bd97b50. Consider uploading reports for the commit bd97b50 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #188   +/-   ##
=======================================
  Coverage   79.64%   79.64%           
=======================================
  Files          12       12           
  Lines        1980     1980           
=======================================
  Hits         1577     1577           
  Misses        403      403           

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.