chore(deps): update dependency grunt to v1 [security]

Author: renovate[bot]

static/components/bootstrap/package.json

@@ -32,7 +32,7 @@
   "devDependencies": {
     "btoa": "~1.1.2",
     "glob": "~4.0.2",
-    "grunt": "~0.4.5",
+    "grunt": "~1.5.3",
     "grunt-autoprefixer": "~0.7.6",
     "grunt-banner": "~0.2.3",
     "grunt-contrib-clean": "~0.5.0",

static/components/respond/package.json

@@ -23,7 +23,7 @@
 	],
 	"devDependencies": {
 		"grunt-cli":"~0.1",
-		"grunt": "~0.4.0",
+		"grunt": "~1.5.3",
 		"grunt-contrib-jshint": "~0.2.0",
 		"grunt-contrib-qunit": "~0.3.0",
 		"grunt-contrib-uglify": "0.2.7"