Fix pretty printers integration for 32-bit ARM

[grisumbras]

No description provided.

[cppalliance-bot]

An automated preview of the documentation is available at https://1064.json.prtest2.cppalliance.org/libs/json/doc/html/index.html

[grisumbras]

ned14/outcome#308

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.70%. Comparing base (7f0bceb) to head (57d42f0).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1064   +/-   ##
========================================
  Coverage    93.70%   93.70%           
========================================
  Files           91       91           
  Lines         9139     9139           
========================================
  Hits          8564     8564           
  Misses         575      575           

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