added TUM Blockchain Conference to community-events.json

Author: Tsatsch

src/data/community-events.json

@@ -176,6 +176,15 @@
     "imageUrl": "https://ethistanbul.io/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fistanbul-background.99d6ad2a.webp&w=3840&q=75",
     "hackathon": true
   },
+  {
+    "title": "TUM Blockchain Conference",
+    "startDate": "2025-09-11",
+    "endDate": "2025-09-12",
+    "href": "https://conference.tum-blockchain.com",
+    "location": "Munich, Germany",
+    "description": "Europe's top Blockchain Conference in Munich is back! Discover how Web3 is moving beyond promise to real world impact with top experts.",
+    "imageUrl": "https://conference.tum-blockchain.com/banners/c25-banner.svg"
+  },
   {
     "title": "ETHSofia",
     "startDate": "2025-09-23",