crypto: ensure documented RSA-PSS saltLength default is used

[panva]

This PR ensures that the documented RSA-PSS saltLength default is used regardless of the OpenSSL version used by the runtime.

[nodejs-github-bot]

Review requested:

• @nodejs/crypto

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/70129/

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.53%. Comparing base (bd3a202) to head (d54393c).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #60662      +/-   ##
==========================================
- Coverage   88.55%   88.53%   -0.02%     
==========================================
  Files         703      703              
  Lines      208077   208083       +6     
  Branches    40083    40081       -2     
==========================================
- Hits       184254   184235      -19     
- Misses      15841    15878      +37     
+ Partials     7982     7970      -12     

Files with missing lines	Coverage Δ
lib/internal/crypto/sig.js	95.74% <100.00%> (+0.07%)	⬆️

... and 37 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/70130/