Bump babel-plugin-tester from 6.4.0 to 6.5.0

Bumps [babel-plugin-tester](https://github.com/babel-utils/babel-plugin-tester) from 6.4.0 to 6.5.0.
- [Release notes](https://github.com/babel-utils/babel-plugin-tester/releases)
- [Changelog](https://github.com/babel-utils/babel-plugin-tester/blob/master/CHANGELOG.md)
- [Commits](babel-utils/babel-plugin-tester@v6.4.0...v6.5.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>