fix(vue): skip transforming for <script setup>

[antfu]

close #14

[codecov-commenter]

Codecov Report

Merging #15 (8babd52) into main (01bd971) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #15      +/-   ##
==========================================
+ Coverage   96.69%   96.74%   +0.05%     
==========================================
  Files           6        6              
  Lines         121      123       +2     
  Branches       33       28       -5     
==========================================
+ Hits          117      119       +2     
  Misses          4        4              

Impacted Files	Coverage Δ
src/loaders/vue.ts	95.00% <100.00%> (+0.55%)	⬆️

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