Bump grunt-contrib-connect from 2.1.0 to 3.0.0

Bumps [grunt-contrib-connect](https://github.com/gruntjs/grunt-contrib-connect) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/gruntjs/grunt-contrib-connect/releases)
- [Changelog](https://github.com/gruntjs/grunt-contrib-connect/blob/main/CHANGELOG)
- [Commits](https://github.com/gruntjs/grunt-contrib-connect/commits/v3.0.0)

---
updated-dependencies:
- dependency-name: grunt-contrib-connect
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -48,7 +48,7 @@
     "eslint-plugin-markdown": "^1.0.0",
     "grunt": "^1.0.4",
     "grunt-compare-size": "^0.4.2",
-    "grunt-contrib-connect": "^2.1.0",
+    "grunt-contrib-connect": "^3.0.0",
     "grunt-contrib-nodeunit": "^2.0.0",
     "grunt-contrib-qunit": "^3.1.0",
     "grunt-contrib-watch": "^1.1.0",