fix: init.d for bubble pointed to wrong position

image/overlay/etc/init.d/bubble

@@ -4,7 +4,7 @@ depend() {
 	need auth-server docker
 }
 
-command="/bin/bubble"
+command="/usr/bin/bubble"
 command_args="-config /daemon/config.yaml"
 pidfile="/run/${RC_SVCNAME}.pid"
 command_background=true