Bump @babel/parser from 7.0.0-beta.48 to 7.0.0-beta.51
Bump @babel/parser from 7.0.0-beta.48 to 7.0.0-beta.51

Bumps [@babel/parser](https://github.com/babel/babel) from 7.0.0-beta.48 to 7.0.0-beta.51.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.0.0-beta.48...v7.0.0-beta.51)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
rwjblue/ember-qunit-codemod,rwjblue/ember-qunit-codemod