Bump grunt from 1.3.0 to 1.5.3

Bumps [grunt](https://github.com/gruntjs/grunt) from 1.3.0 to 1.5.3.
- [Release notes](https://github.com/gruntjs/grunt/releases)
- [Changelog](https://github.com/gruntjs/grunt/blob/main/CHANGELOG)
- [Commits](gruntjs/grunt@v1.3.0...v1.5.3)

---
updated-dependencies:
- dependency-name: grunt
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "test": "grunt lint"
   },
   "dependencies": {
-    "grunt": "1.3.0",
+    "grunt": "1.5.3",
     "grunt-cli": "1.3.2",
     "grunt-jquery-content": "3.1.0"
   }