Next version will be 5.8.4

Due to stove failures because of a bogged chef-api
release, see https://github.com/tas50/chef-api/pull/67.

CHANGELOG.md

 # Change Log
 
-## [v5.8.3](https://github.com/rabbitmq/chef-cookbook/tree/v5.8.3) (under development)
+## [v5.8.4](https://github.com/rabbitmq/chef-cookbook/tree/v5.8.4) (2019-08-26)
 
 * `rabbitmq[erlang_package_from_bintray]` now provisions Erlang 22 by default on RPM-based
    distributions. Erlang `21.x` can be provisioned by overriding the

metadata.rb

@@ -4,7 +4,7 @@ maintainer 'Chef, Inc. and contributors'
 maintainer_email 'mklishin@pivotal.io'
 license 'Apache-2.0'
 description 'Installs and configures RabbitMQ server'
-version '5.8.3'
+version '5.8.4'
 
 recipe 'rabbitmq', 'Install and configure RabbitMQ'