chore: update meetings.json and newsrooom_videos.json (#4465)

Author: asyncapi-bot

config/meetings.json

@@ -20,13 +20,6 @@
     "banner": "https://github.com/user-attachments/assets/e0c22c5a-94a8-488c-970c-14aa1697283c",
     "date": "2025-07-15T15:00:00.000Z"
   },
-  {
-    "title": "AsyncAPI Design WG Meeting",
-    "calLink": "https://www.google.com/calendar/event?eid=YTZhYjdnZmtyYmM1aWo1aGNvOGxmODM1bW8gY19xOXRzZWlnbG9tZHNqNm5qdWh2YnB0czExY0Bn",
-    "url": "https://github.com/asyncapi/community/issues/1971",
-    "banner": "",
-    "date": "2025-07-03T16:00:00.000Z"
-  },
   {
     "title": "AsyncAPI Community WG Meeting",
     "calLink": "https://www.google.com/calendar/event?eid=YWZtZ2xmNG9ndDhqbHBybHNiNWdiZnZodDQgY19xOXRzZWlnbG9tZHNqNm5qdWh2YnB0czExY0Bn",