Fix dialyze error for deps/rabbit

Technically this is a workaround - dialyzer should not be checking the
khepri source in this case

Author: HoloRin

deps/rabbit/Makefile

@@ -135,7 +135,7 @@ BUILD_DEPS = rabbitmq_cli looking_glass
 DEPS = ranch rabbit_common amqp10_common rabbitmq_prelaunch ra sysmon_handler stdout_formatter recon redbug observer_cli osiris syslog systemd seshat khepri khepri_mnesia_migration cuttlefish gen_batch_server
 TEST_DEPS = rabbitmq_ct_helpers rabbitmq_ct_client_helpers meck proper amqp_client rabbitmq_amqp_client rabbitmq_amqp1_0
 
-PLT_APPS += mnesia runtime_tools looking_glass
+PLT_APPS += mnesia runtime_tools looking_glass horus
 
 dep_syslog = git https://github.com/schlagert/syslog 4.0.0
 dep_osiris = git https://github.com/rabbitmq/osiris v1.8.1