Implement call_is_undesirable parameter in undesirable_operator_linter

[emmanuel-ferdman]

PR Summary

The call_is_undesirable parameter was added in #2761 but never actually wired up - the linter always checked prefix calls regardless of the setting. Now when you pass call_is_undesirable = FALSE, prefix notation like :::(pkg, fun) is properly skipped while still catching infix usage like pkg:::fun.

Fixes #2999

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.23%. Comparing base (e6b2834) to head (7c5a5b0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3015   +/-   ##
=======================================
  Coverage   99.23%   99.23%           
=======================================
  Files         128      128           
  Lines        7288     7293    +5     
=======================================
+ Hits         7232     7237    +5     
  Misses         56       56           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[MichaelChirico]

Thanks!