Bump rabbitmq-upgrade-preparation tool
Bump rabbitmq-upgrade-preparation tool

[finishes #131000981]

Signed-off-by: Svett Ralchev <da5e7676cee2b8579db636d977fd7d6ee8a31e38@pivotal.io>

pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release,pivotal-cf/cf-rabbitmq-release