fix(rn-style-transformer): error print

[zhiqingchen]

这个 PR 做了什么? (简要描述所做更改)

这个 PR 是什么类型? (至少选择一个)

• 错误修复(Bugfix) issue: fix #
• 新功能(Feature)
• 代码重构(Refactor)
• TypeScript 类型定义修改(Typings)
• 文档修改(Docs)
• 代码风格更新(Code style update)
• 其他，请描述(Other, please describe):

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• Web 平台（H5）
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• 鸿蒙（harmony）

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 58.52%. Comparing base (c884896) to head (8f704fc).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...aro-rn-style-transformer/src/transforms/postcss.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #17380    +/-   ##
========================================
  Coverage   58.52%   58.52%            
========================================
  Files         468      468            
  Lines       27136    27136            
  Branches     5739     5915   +176     
========================================
  Hits        15882    15882            
+ Misses       9900     9876    -24     
- Partials     1354     1378    +24     

Flag	Coverage Δ
taro-cli	72.37% <ø> (ø)
taro-runtime	59.87% <ø> (ø)
taro-web	52.77% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...aro-rn-style-transformer/src/transforms/postcss.ts	91.07% <0.00%> (ø)

... and 11 files with indirect coverage changes