Bump browser-sync from 2.29.3 to 3.0.2 (#27)

Bumps [browser-sync](https://github.com/BrowserSync/browser-sync) from 2.29.3 to 3.0.2.
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/CHANGELOG.md)
- [Commits](BrowserSync/browser-sync@v2.29.3...v3.0.2)

---
updated-dependencies:
- dependency-name: browser-sync
  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>

package.json

@@ -2,7 +2,7 @@
   "repository": "https://github.com/wallies/wallies.github.io/",
   "devDependencies": {
     "backstopjs": "^6.0.1",
-    "browser-sync": "^2.12.2",
+    "browser-sync": "^3.0.2",
     "gulp": "^4.0.2",
     "gulp-cheerio": "^1.0.0",
     "gulp-imagemin": "^9.0.0",