chore: Update translations (#9236)

- update translations 

------------------
Co-authored-by: Sojan <sojan@pepalo.com>

app/javascript/dashboard/i18n/locale/zh_CN/helpCenter.json

@@ -456,7 +456,7 @@
       "BACK_RESULTS": "Back to results"
     },
     "UPGRADE_PAGE": {
-      "TITLE": "Help Center",
+      "TITLE": "帮助中心",
       "DESCRIPTION": "Create user-friendly self-service portals. Help your users to access the articles and get support 24/7. Upgrade your subscription to enable this feature.",
       "SELF_HOSTED_DESCRIPTION": "Create user-friendly self-service portals. Help your users to access the articles and get support 24/7. Please contact your administrator to enable this feature.",
       "BUTTON": {