lib: use validateArray for array arguments

[greenheadHQ]

Replaces manual ArrayIsArray checks that throw ERR_INVALID_ARG_TYPE with the shared validateArray helper, following #39774.

The thrown error is unchanged in all seven spots: validateArray throws ERR_INVALID_ARG_TYPE(name, 'Array', value) under the same !ArrayIsArray(value) condition, and the default minLength = 0 makes its length check a no-op. Existing tests already pin the message, e.g. test-tls-set-default-ca-certificates-error.js asserts The "certs" argument must be an instance of Array.

In lib/internal/streams/iter/{push,broadcast}.js the checks stay synchronous: writev/writevSync threw before reaching any async path, and validateArray throws synchronously too.

[nodejs-github-bot]

Review requested:

• @nodejs/crypto
• @nodejs/net
• @nodejs/streams

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.29%. Comparing base (a6e7e6a) to head (c9b9c01).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #64959      +/-   ##
==========================================
- Coverage   90.30%   90.29%   -0.01%     
==========================================
  Files         760      760              
  Lines      247154   247140      -14     
  Branches    46613    46609       -4     
==========================================
- Hits       223181   223164      -17     
- Misses      15443    15454      +11     
+ Partials     8530     8522       -8     

Files with missing lines	Coverage Δ
lib/internal/streams/iter/broadcast.js	87.71% <100.00%> (-0.05%)	⬇️
lib/internal/streams/iter/classic.js	89.28% <100.00%> (-0.03%)	⬇️
lib/internal/streams/iter/push.js	91.36% <100.00%> (-0.06%)	⬇️
lib/internal/tls/secure-context.js	93.42% <100.00%> (-0.04%)	⬇️
lib/tls.js	93.11% <100.00%> (-0.03%)	⬇️

... and 29 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/75398/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/75408/