Fix fuzzer build & increase RSS limit

[estringana]

Description

Motivation

Additional Notes

Describe how to test your changes

Readiness checklist

• Unit tests have been updated and pass
• If known, an appropriate milestone has been selected
• All new source files include the required notice

Release checklist

• The CHANGELOG.md has been updated

[codecov-commenter]

Codecov Report

Merging #313 (d03549c) into master (0cfbc29) will decrease coverage by 10.73%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master     #313       +/-   ##
===========================================
- Coverage   64.14%   53.42%   -10.73%     
===========================================
  Files          95       70       -25     
  Lines        6024     2587     -3437     
  Branches     1952     1165      -787     
===========================================
- Hits         3864     1382     -2482     
+ Misses       1008      447      -561     
+ Partials     1152      758      -394     

Flag	Coverage Δ
extension	?
helper	53.42% <ø> (ø)

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Files	Coverage Δ
src/helper/remote_config/protocol/client.hpp	100.00% <ø> (ø)

... and 25 files with indirect coverage changes

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