Rename testing test package to trustedfunc package

[yuxincs]

This PR does a simple rename for the test package since it now hosts test code for more than testing, it contains test code for all modeled (trusted) functions.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.66%. Comparing base (a7a5ca9) to head (0c0c648).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #282   +/-   ##
=======================================
  Coverage   87.66%   87.66%           
=======================================
  Files          66       66           
  Lines        7943     7943           
=======================================
  Hits         6963     6963           
  Misses        798      798           
  Partials      182      182           

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[github-actions]

Golden Test

Note

✅ NilAway errors reported on standard libraries are identical.

3263 errors on base branch (main, a7a5ca9)
3263 errors on test branch (c759f98)