Update React Version

[farzadniazmand]

Please update react version to the newest. On react 17.0.2, I am having conflicting dependency error. Thanks in advance

[jakejakeho]

I have created PR: #229

[jukben]

Should be fixed in https://github.com/webscopeio/react-textarea-autocomplete/releases/tag/v4.9.0 Thanks for contribution @jakejakeho-seekers