Fix for tabIndex prop handling

[morellodev]

This PR fixes #570

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/react-component/select/qfnp2bmmd
✅ Preview: https://select-git-fix-tabindex-prop.react-component.now.sh

[codecov]

Codecov Report

Merging #572 (c79f5e5) into master (7781194) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #572   +/-   ##
=======================================
  Coverage   99.27%   99.27%           
=======================================
  Files          20       20           
  Lines         967      967           
  Branches      327      327           
=======================================
  Hits          960      960           
  Misses          6        6           
  Partials        1        1           

Impacted Files	Coverage Δ
src/generate.tsx	99.67% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7781194...c79f5e5. Read the comment docs.