chore(deps): bump grunt-cli from 1.4.3 to 1.5.0 in /tests/apps/multi

Bumps [grunt-cli](https://github.com/gruntjs/grunt-cli) from 1.4.3 to 1.5.0.
- [Release notes](https://github.com/gruntjs/grunt-cli/releases)
- [Changelog](https://github.com/gruntjs/grunt-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/gruntjs/grunt-cli/compare/v1.4.3...v1.5.0)

---
updated-dependencies:
- dependency-name: grunt-cli
  dependency-version: 1.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

tests/apps/multi/package.json

@@ -3,7 +3,7 @@
   "dependencies": {
     "bower": "^1.8.0",
     "grunt": "~1.6.1",
-    "grunt-cli": "~1.4.3",
+    "grunt-cli": "~1.5.0",
     "grunt-contrib-compass": "~1.1.1",
     "load-grunt-tasks": "~5.1.0",
     "tmp": "0.2.5"