lib,src: remove --no-experimental-websocket CLI flag

[aduh95]

No description provided.

[nodejs-github-bot]

Review requested:

• @nodejs/config

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.30%. Comparing base (91a99c5) to head (efd37f1).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #65284      +/-   ##
==========================================
- Coverage   90.32%   90.30%   -0.02%     
==========================================
  Files         751      751              
  Lines      250000   249946      -54     
  Branches    47231    47216      -15     
==========================================
- Hits       225816   225720      -96     
- Misses      15566    15609      +43     
+ Partials     8618     8617       -1     

Files with missing lines	Coverage Δ
lib/internal/process/pre_execution.js	97.69% <ø> (-0.03%)	⬇️
src/node_options.cc	79.39% <100.00%> (-0.02%)	⬇️

... and 35 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/75849/