src: migrate WriteOneByte to WriteOneByteV2

[legendecas]

v8::String::WriteOneByteV2 now defaults to NO_NULL_TERMINATION. Call sites expect null termination should set flag String::WriteFlags::kNullTerminate.

String::REPLACE_INVALID_UTF8 is a no-op in WriteOneByteV2.

Fixes: #59555

[nodejs-github-bot]

Review requested:

• @nodejs/http
• @nodejs/http2
• @nodejs/net

[codecov]

Codecov Report

❌ Patch coverage is 95.65217% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 89.90%. Comparing base (886e4b3) to head (2249366).
⚠️ Report is 29 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node_http_common-inl.h	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #59634      +/-   ##
==========================================
+ Coverage   89.85%   89.90%   +0.04%     
==========================================
  Files         667      667              
  Lines      196260   196606     +346     
  Branches    38559    38595      +36     
==========================================
+ Hits       176341   176750     +409     
+ Misses      12368    12313      -55     
+ Partials     7551     7543       -8     

Files with missing lines	Coverage Δ
src/node_buffer.cc	68.83% <100.00%> (ø)
src/node_http2.cc	81.94% <100.00%> (+0.09%)	⬆️
src/string_bytes.cc	70.51% <100.00%> (+0.09%)	⬆️
src/node_http_common-inl.h	67.74% <0.00%> (ø)

... and 49 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Flarna]

Looks like some tests crash because of this changes.

[mcollina]

lgtm

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/68961/

[legendecas]

@Flarna: Looks like some tests crash because of this changes.

Updated call sites that expect loose convertion to onte bytes, and fixed debug checks.

[nodejs-github-bot]

Landed in 5af0355