skip added required properties in the response-property-became-required check

[tcdsv]

#481

[codecov-commenter]

Codecov Report

Attention: 48 lines in your changes are missing coverage. Please review.

Comparison is base (a2470e3) 83.75% compared to head (1f6944b) 84.36%.
Report is 14 commits behind head on main.

Files	Patch %	Lines
internal/diff_flags.go	63.63%	16 Missing ⚠️
delta/endpoints.go	79.31%	4 Missing and 2 partials ⚠️
load/spec_info.go	76.92%	4 Missing and 2 partials ⚠️
internal/cmd_flags.go	88.57%	3 Missing and 1 partial ⚠️
delta/parameters.go	90.62%	2 Missing and 1 partial ⚠️
delta/schema.go	57.14%	2 Missing and 1 partial ⚠️
internal/delta.go	88.88%	2 Missing and 1 partial ⚠️
load/option.go	86.95%	2 Missing and 1 partial ⚠️
internal/changelog_flags.go	95.45%	2 Missing ⚠️
delta/delta.go	95.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #487      +/-   ##
==========================================
+ Coverage   83.75%   84.36%   +0.61%     
==========================================
  Files         217      227      +10     
  Lines       12593    12845     +252     
==========================================
+ Hits        10547    10837     +290     
+ Misses       1668     1628      -40     
- Partials      378      380       +2     

Flag	Coverage Δ
unittests	84.36% <89.38%> (+0.61%)	⬆️

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[reuvenharrison]

Looks good.
Please check my commit too.