ci: use node 18.x

[bytemain]

Types

• ⏱ Tests

Background or solution

Changelog

[railway-app]

This PR is being deployed to Railway 🚅

core: ◻️ REMOVED

[bytemain]

应该是某个 native module 在 node 20 上跑不过

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.83%. Comparing base (c648ab4) to head (ed411a7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3517      +/-   ##
==========================================
- Coverage   56.84%   56.83%   -0.01%     
==========================================
  Files        1461     1461              
  Lines       89481    89481              
  Branches    18418    18213     -205     
==========================================
- Hits        50861    50854       -7     
+ Misses      38597    35158    -3439     
- Partials       23     3469    +3446     

Flag	Coverage Δ
jsdom	52.10% <ø> (-0.01%)	⬇️
node	15.88% <ø> (ø)

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