Bump Cuttlefish to 2.6.0

(cherry picked from commit f58a837)

Author: michaelklishin

deps/rabbit/Makefile

@@ -136,7 +136,7 @@ TEST_DEPS = rabbitmq_ct_helpers rabbitmq_ct_client_helpers amqp_client meck prop
 
 PLT_APPS += mnesia
 
-dep_cuttlefish = hex 2.4.1
+dep_cuttlefish = hex 2.6.0
 dep_syslog = git https://github.com/schlagert/syslog 3.4.5
 
 define usage_xml_to_erl