fix: 修复 CSS 变量的数字会被加上单位的问题

[yesmeck]

fix #1869

[codedart2018]

发包了嘛？

[yesmeck]

发包了嘛？

马上

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[codecov]

Codecov Report

Merging #1870 (7492c3d) into master (e7750fd) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1870      +/-   ##
==========================================
+ Coverage   90.37%   90.39%   +0.02%     
==========================================
  Files         391      391              
  Lines        4756     4768      +12     
  Branches      692      692              
==========================================
+ Hits         4298     4310      +12     
  Misses        449      449              
  Partials        9        9              

Impacted Files	Coverage Δ
...ckages/remax-runtime/src/utils/plainStyle/index.ts	100.00% <100.00%> (ø)
packages/remax-runtime/src/hostConfig/index.ts	97.75% <0.00%> (-0.03%)	⬇️
packages/remax-runtime/src/VNode.ts	100.00% <0.00%> (ø)
packages/remax-runtime/src/Container.ts	96.92% <0.00%> (+0.09%)	⬆️

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[yesmeck]

@codedart2018 2.15.13

[codedart2018]

@codedart2018 2.15.13

谢谢