Bump grunt from 1.2.1 to 1.3.0 (#119)

Bumps [grunt](https://github.com/gruntjs/grunt) from 1.2.1 to 1.3.0.
- [Release notes](https://github.com/gruntjs/grunt/releases)
- [Changelog](https://github.com/gruntjs/grunt/blob/master/CHANGELOG)
- [Commits](gruntjs/grunt@v1.2.1...v1.3.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -26,7 +26,7 @@
   },
   "homepage": "http://floydpink.github.io/lzwCompress.js/",
   "devDependencies": {
-    "grunt": "^1.2.1",
+    "grunt": "^1.3.0",
     "grunt-contrib-connect": "^3.0.0",
     "grunt-contrib-jasmine": "^2.2.0",
     "grunt-contrib-jshint": "^2.1.0",