build(deps-dev): bump browser-sync from 2.26.12 to 2.26.13 (#375)

Bumps [browser-sync](https://github.com/BrowserSync/browser-sync) from 2.26.12 to 2.26.13.
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/CHANGELOG.md)
- [Commits](https://github.com/BrowserSync/browser-sync/compare/v2.26.12...v2.26.13)

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