Update tap requirement from ^11.0.0 to ^14.4.1 (#746)

Updates the requirements on [tap](https://github.com/tapjs/node-tap) to permit the latest version.
- [Release notes](https://github.com/tapjs/node-tap/releases)
- [Commits](https://github.com/tapjs/node-tap/compare/v11.0.0...v14.4.1)

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

package.json

@@ -27,7 +27,7 @@
     "grunt-postcss": "^0.9.0",
     "grunt-pure-grids": "^1.0.0",
     "grunt-stripmq": "0.0.6",
-    "tap": "^11.0.0"
+    "tap": "^14.4.1"
   },
   "description": "Pure is a ridiculously tiny CSS library you can use to start any web project.",
   "bugs": {