chore: Fix cassandra deploy scripts

[michaelkro]

Deployer scripts

• Enable JMX authentication and add user with credentials. NOTE: Try as I might, I could not figure out how to escape the ! that is usually included in our standard test credentials.

  user: newrelic
  pw: Virtuoso4all
  

• AL2 quirks
  • When installing cassandra with yum, configuration files are located at /etc/cassandra/conf/, instead of the default /etc/cassandra

Testing

NOTES:

• The current rhel recipe is broken. You will need to reference the fixed recipe in this branch when testing.
• To fully validate that the CLI install was successful, ensure that you see a new cassandra entity show up in the entity explorer.

1. If you run demo-deployer in a docker container with open-install-library as a mounted volume, you can reference local deploy scripts in the deployer config (e.g. apache-cassandra-debian10.json) by replacing "source_repository" with "local_source_path". For example:

   {
     ...
     "local_source_path": "/mnt/deployer/open-install-library",
     "deploy_script_path": "/test/deploy/linux/cassandra/install/debian/roles",
     ...
   }
   

2. Cassandra install via CLI using the creds above should succeed
3. Cassandra install via CLI should fail when using incorrect creds