chore(deps): update dependency tsdown to v0.18.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
tsdown (source)	0.18.3 → 0.18.4

---

Release Notes

rolldown/tsdown (tsdown)

v0.18.4

Compare Source

   🚀 Features

• Export mergeConfig  -  by @​sxzz (ccd17)
• Warn deprecated removeNodeProtocol  -  by @​sxzz (90cd6)
• css: Add CSS code splitting support  -  by @​jinghaihan and @​sxzz in #​654 (0525f)
• entry: Support multiple patterns with same base  -  by @​sxzz (cee1b)
• exports: Add packageJson option  -  by @​sxzz (6d220)

    View changes on GitHub

---

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 33.09%. Comparing base (704e9a5) to head (1ff9a03).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3173   +/-   ##
=======================================
  Coverage   33.09%   33.09%           
=======================================
  Files         440      440           
  Lines       34427    34427           
  Branches     2212     2212           
=======================================
  Hits        11395    11395           
  Misses      23002    23002           
  Partials       30       30           

Flag	Coverage Δ
unittests	33.09% <ø> (ø)

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commit: 1ff9a03