crypto: guard against size_t overflow on experimental 32-bit arch

[panva]

Refs: https://hackerone.com/reports/3655230

[nodejs-github-bot]

Review requested:

• @nodejs/crypto

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72543/

[panva]

cc @nodejs/security

[codecov]

Codecov Report

❌ Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.77%. Comparing base (f48ac91) to head (a6bedb1).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
src/crypto/crypto_turboshake.cc	40.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #62626   +/-   ##
=======================================
  Coverage   89.77%   89.77%           
=======================================
  Files         697      697           
  Lines      215749   215754    +5     
  Branches    41304    41288   -16     
=======================================
+ Hits       193681   193698   +17     
- Misses      14161    14166    +5     
+ Partials     7907     7890   -17     

Files with missing lines	Coverage Δ
src/crypto/crypto_turboshake.cc	82.81% <40.00%> (-0.62%)	⬇️

... and 25 files with indirect coverage changes

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