fix(wechat): Image 组件 mode 属性添加 heightFix

[cuzfinal]

微信小程序 2.10.3 版本中新增该属性

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[codecov]

Codecov Report

Merging #1402 (dc579bc) into master (f3baa26) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1402   +/-   ##
=======================================
  Coverage   90.75%   90.75%           
=======================================
  Files         363      363           
  Lines        4381     4381           
  Branches      678      678           
=======================================
  Hits         3976     3976           
  Misses        397      397           
  Partials        8        8           

Impacted Files	Coverage Δ
...ges/remax-wechat/src/hostComponents/Image/index.ts	100.00% <ø> (ø)

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[yesmeck]

感谢～