remove npm packages grunt-{hub,contrib-uglify-es} not used in 20.1

Gruntfile.js

@@ -19,7 +19,6 @@
  *		npm install grunt-terser --save-dev
  *		npm install grunt-newer --save-dev
  *		npm install grunt-contrib-cssmin --save-dev
- *		npm install grunt-hub --save-dev
  *
  * Building happens by running in your EGroupware directory:
  *

package.json

@@ -6,20 +6,18 @@
   "dependencies": {},
   "repository": {},
   "devDependencies": {
-    "@types/jquery": "^3.3.38",
-    "@types/jqueryui": "^1.11.37",
+    "@types/jquery": "^3.5.5",
+    "@types/jqueryui": "^1.12.14",
     "chai": "^4.2.0",
-    "grunt": "^1.0.3",
+    "grunt": "^1.3.0",
     "grunt-contrib-cssmin": "^2.2.1",
-    "grunt-contrib-uglify-es": "^3.3.0",
-    "grunt-hub": "^0.7.0",
     "grunt-newer": "^1.3.0",
     "grunt-terser": "^1.0.0",
     "grunt-ts": "^6.0.0-beta.22",
     "jsdom": "16.4.0",
-    "mocha": "^8.1.3",
-    "terser": "^4.7.0",
-    "typescript": "^3.7.4"
+    "mocha": "^8.2.1",
+    "terser": "^4.8.0",
+    "typescript": "^3.9.7"
   },
   "scripts": {
     "test": "mocha",