Bump jquery-rails to 4.3.1
Bump jquery-rails to 4.3.1

Bumps [jquery-rails](https://github.com/rails/jquery-rails) from 4.2.1 to 4.3.1.
- [Changelog](https://github.com/rails/jquery-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/jquery-rails/compare/v4.2.1...v4.3.1)

If you'd like to skip this version, you can just close this PR. If you have any feedback just mention @dependabot in the comments below.
samjewell/silverspoon,samjewell/silverspoon,samjewell/silverspoon