Update JS dependencies (#8051)

package.json

@@ -6,13 +6,13 @@
   },
   "devDependencies": {
     "autoprefixer": "9.6.1",
-    "eslint": "6.0.1",
-    "less": "3.9.0",
+    "eslint": "6.3.0",
+    "less": "3.10.3",
     "less-plugin-clean-css": "1.5.1",
     "postcss-cli": "6.1.3",
     "stylelint": "10.1.0",
     "stylelint-config-standard": "18.3.0",
-    "updates": "8.5.0"
+    "updates": "8.5.3"
   },
   "browserslist": [
     "> 1%",