feat(conferences): add React Universe Conf 2024 (#6649)

Author: szymonrybczak

src/content/community/conferences.md

@@ -10,6 +10,11 @@ Do you know of a local React.js conference? Add it here! (Please keep the list c
 
 ## Upcoming Conferences {/*upcoming-conferences*/}
 
+### React Universe Conf 2024 {/*react-universe-conf-2024*/}
+September 5-6, 2024. Wrocław, Poland.
+
+[Website](https://www.reactuniverseconf.com/) - [Twitter](https://twitter.com/react_native_eu) - [LinkedIn](https://www.linkedin.com/events/reactuniverseconf7163919537074118657/)
+
 ### React Paris 2024 {/*react-paris-2024*/}
 March 22, 2024. In-person in Paris, France + Remote (hybrid)