fix: update NG Poland logo

Author: geromegrignon

angular-hub/src/public/assets/data/community.json

@@ -1089,7 +1089,7 @@
     "location": "Warsaw, Poland",
     "url": "https://ng-poland.pl/",
     "mediaChannel": null,
-    "logo": "https://pbs.twimg.com/profile_images/904812819941650432/ZDOemvtt_400x400.jpg",
+    "logo": "https://ng-poland.pl/images/logos/logo-small-2024.webp",
     "twitter": "https://twitter.com/ngPolandConf",
     "linkedin": null,
     "callForPapers": null,