fix(list): Only apply aria-orientation with role

[liamcmitchell-sc]

Fixes #944

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[codecov-io]

Codecov Report

Merging #945 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #945      +/-   ##
==========================================
+ Coverage   94.12%   94.13%   +<.01%     
==========================================
  Files          86       86              
  Lines        3644     3646       +2     
  Branches      576      578       +2     
==========================================
+ Hits         3430     3432       +2     
  Misses         90       90              
  Partials      124      124

Impacted Files	Coverage Δ
packages/list/index.tsx	94.85% <100%> (+0.05%)	⬆️

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[googlebot]

CLAs look good, thanks!

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[moog16]

Looks good! Please make a few tweaks.

Also are you able to test this in your scenario? Does it work?

[liamcmitchell-sc]

Done. Yes, tested this in my project. Works as expected.

[moog16]

Thanks!