Prepare snapshot version 2.25.4-SNAPSHOT (#945)

Co-authored-by: davidliu <242400+davidliu@users.noreply.github.com>

Author: davidliu

gradle.properties

@@ -33,7 +33,7 @@ kapt.use.worker.api=true
 ###############################################################
 
 GROUP=io.livekit
-VERSION_NAME=2.25.3
+VERSION_NAME=2.25.4-SNAPSHOT
 
 POM_DESCRIPTION=LiveKit Android SDK, WebRTC Rooms