[TASK] Upgrade Grunt to 1.3

This patch upgrades Grunt to version 1.3 which also updates 3rd party
dependencies and solves 5 issues detected by `yarn audit`.

Executed command:

  yarn add --dev grunt@~1.3.0

Resolves: #92410
Releases: master, 10.4
Change-Id: I63cb4f272190a3f213ac60b36682fe185aa5f2de
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65881
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: TYPO3com <noreply@typo3.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>

Build/package.json

@@ -28,7 +28,7 @@
     "autoprefixer": "^9.8.6",
     "bootstrap-sass": "^3.4.1",
     "eslint": "^7.6.0",
-    "grunt": "~1.0.4",
+    "grunt": "~1.3.0",
     "grunt-contrib-copy": "^1.0.0",
     "grunt-contrib-imagemin": "^3.1",
     "grunt-contrib-watch": "~1.1.0",