Bump browser-sync from 2.29.3 to 3.0.4 (#53)

Bumps [browser-sync](https://github.com/BrowserSync/browser-sync) from 2.29.3 to 3.0.4.
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/changelog.js)
- [Commits](BrowserSync/browser-sync@v2.29.3...v3.0.4)

---
updated-dependencies:
- dependency-name: browser-sync
  dependency-version: 3.0.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -26,7 +26,7 @@
     "babel-core": "^6.25.0",
     "babel-preset-env": "^1.7.0",
     "babelify": "^10.0.0",
-    "browser-sync": "^2.18.12",
+    "browser-sync": "^3.0.4",
     "browserify": "^17.0.0",
     "child_process": "^1.0.2",
     "del": "^7.0.0",