fix(eslint-plugin): [no-misused-promises] improve check union types

[yeonjuan]

PR Checklist

• Addresses an existing open issue: fixes Bug: [no-misused-promises] Fails to check unions that contain misused promises. #8494
• That issue was marked as accepting prs
• Steps in Contributing were taken

Overview

[typescript-eslint]

Thanks for the PR, @yeonjuan!

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The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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• nx test parser --coverage=false
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• nx test utils --coverage=false
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.89%. Comparing base (f825426) to head (a5c08f4).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8534   +/-   ##
=======================================
  Coverage   86.89%   86.89%           
=======================================
  Files         250      250           
  Lines       12201    12202    +1     
  Branches     3852     3851    -1     
=======================================
+ Hits        10602    10603    +1     
  Misses       1332     1332           
  Partials      267      267           

Flag	Coverage Δ
unittest	86.89% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...ges/eslint-plugin/src/rules/no-misused-promises.ts	97.46% <100.00%> (-0.02%)	⬇️

... and 3 files with indirect coverage changes

[auvred]

Looks great to me!

Just a couple of small suggestions:

[auvred]

🚀 Looks great to me!