[Android] update rtc version 4.5.1

Author: alienzh

Android/APIExample/agora-simple-filter/src/main/cpp/AgoraRtcKit/NGIAgoraLocalUser.h

@@ -1577,7 +1577,7 @@ class ILocalUserObserver {
   /**
    * datastream from this connection.
    */
-  virtual void onStreamMessage(user_id_t userId, int streamId, const char* data, size_t length) {}
+  virtual void onStreamMessage(user_id_t userId, int streamId, const char* data, size_t length, uint64_t sendTs = 0) {}
 
   /**
    * Occurs when the remote user state is updated.

Android/APIExample/gradle.properties

@@ -23,4 +23,4 @@ simpleFilter = false
 # read enable stream encrypt section on README first before set this flag to TRUE
 streamEncrypt = false
 
-rtc_sdk_version = 4.5.0
+rtc_sdk_version = 4.5.1