feat(tours): freeze versions and add licensings doc (#4407)

platform/app/package.json

@@ -98,8 +98,8 @@
     "react-resize-detector": "^10.0.1",
     "react-router": "^6.23.1",
     "react-router-dom": "^6.8.1",
-    "react-shepherd": "^6.1.1",
-    "shepherd.js": "^13.0.3",
+    "react-shepherd": "6.1.1",
+    "shepherd.js": "13.0.3",
     "url-loader": "^4.1.1"
   },
   "devDependencies": {