fix: catch handles promise

[puglyfe]

Checks

• I have read the contributing guidelines.

Changes

• replaces hasChainedThen with hasChainedPromiseHandler in the isPromiseHandled logic
• adds tests to all async rules that utilize this code path

I'm a bit curious if there's a reason why this pattern wasn't supported previously. I know it's possible to rewrite tests to use async matchers, but this seems like something that the plugin should allow. Let me know if there's something I'm not considering here...

edit: github cached the PR title from my previous contribution 🤔 not sure what happened there.

Context

closes #1058

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.47%. Comparing base (2e7e1b6) to head (48eeefc).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1059   +/-   ##
=======================================
  Coverage   96.46%   96.47%           
=======================================
  Files          50       50           
  Lines        2687     2693    +6     
  Branches     1112     1116    +4     
=======================================
+ Hits         2592     2598    +6     
  Misses         95       95           

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