fix[codegen]: add back in returndatasize check

[charles-cooper]

it's not checked in make_setter when needs_clamp is False

What I did

How I did it

How to verify it

Commit message

add back in `returndatasize` check for external calls in the case
that `make_setter()` is not called (i.e. when `needs_clamp()` is
`True`). the check was removed (i.e. there was a regression) in
21f7172274e

test case and poc contributed by @cyberthirst

---------

Co-authored-by: cyberthirst <cyberthirst.eth@gmail.com>

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.38%. Comparing base (e9e9d78) to head (7653155).

❗ Current head 7653155 differs from pull request most recent head e6cd05e

Please upload reports for the commit e6cd05e to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4144      +/-   ##
==========================================
- Coverage   91.20%   90.38%   -0.82%     
==========================================
  Files         109      109              
  Lines       15568    15552      -16     
  Branches     3417     3415       -2     
==========================================
- Hits        14199    14057     -142     
- Misses        939     1037      +98     
- Partials      430      458      +28     

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