Bump ms and grunt-contrib-watch

Bumps [ms](https://github.com/vercel/ms) to 2.1.1 and updates ancestor dependency [grunt-contrib-watch](https://github.com/gruntjs/grunt-contrib-watch). These dependencies need to be updated together.


Updates `ms` from 0.7.1 to 2.1.1
- [Release notes](https://github.com/vercel/ms/releases)
- [Commits](https://github.com/vercel/ms/compare/0.7.1...2.1.1)

Updates `grunt-contrib-watch` from 1.0.0 to 1.1.0
- [Release notes](https://github.com/gruntjs/grunt-contrib-watch/releases)
- [Changelog](https://github.com/gruntjs/grunt-contrib-watch/blob/main/CHANGELOG)
- [Commits](https://github.com/gruntjs/grunt-contrib-watch/compare/v1.0.0...v1.1.0)

---
updated-dependencies:
- dependency-name: ms
  dependency-type: indirect
- dependency-name: grunt-contrib-watch
  dependency-type: direct:development
...

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

package.json

@@ -148,7 +148,7 @@
     "grunt-contrib-jasmine": "CartoDB/grunt-contrib-jasmine#headless-chrome",
     "grunt-contrib-jst": "CartoDB/grunt-contrib-jst#merge-master",
     "grunt-contrib-uglify": "2.0.x",
-    "grunt-contrib-watch": "1.0.0",
+    "grunt-contrib-watch": "1.1.0",
     "grunt-eslint": "~20.1.0",
     "grunt-exorcise": "2.1.1",
     "grunt-postcss": "0.7.2",