Fix test after new property in LiveLocationShare

libraries/matrix/impl/src/test/kotlin/io/element/android/libraries/matrix/impl/room/location/TimedLiveLocationSharesFlowTest.kt

@@ -141,6 +141,7 @@ private fun aLiveLocationShare(
     return LiveLocationShare(
         userId = UserId(userId),
         lastLocation = null,
+        startTimestamp = 0L,
         endTimestamp = endTimestamp,
     )
 }