Update E1029 to support step fn Definition in exceptions

[kddejong]

Issue #, if available:
fix #3786
Description of changes:

• Update E1029 to support step fn Definition in exceptions

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.78%. Comparing base (223132c) to head (55766d8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3792      +/-   ##
==========================================
- Coverage   93.79%   93.78%   -0.01%     
==========================================
  Files         363      363              
  Lines       12440    12445       +5     
  Branches     2551     2553       +2     
==========================================
+ Hits        11668    11672       +4     
  Misses        429      429              
- Partials      343      344       +1     

Flag	Coverage Δ
unittests	93.74% <100.00%> (-0.01%)	⬇️

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