Fix rabbitmq dependency

Fix rabbitmq dependency

puppetlabs/rabbitmq [1] is deprecated, and max version is 5.6.0 which can
not be fulfilled by this dependency.

Correct it to puppet-rabbitmq [2] instead which is being actively maintained
and has the right version.

[1]: https://forge.puppet.com/puppetlabs/rabbitmq
[2]: https://forge.puppet.com/puppet/rabbitmq

Change-Id: I5ae8d2df21481b91fa7721d3a899a3f1c3bca1ce
Closes-Bug: #1850236
(cherry picked from commit c5807a735e82b0cc258aa42d4520b1f64a7afa53)
(cherry picked from commit 60ee76fa3f40a62c0b935b37f98787945f80bb9c)