Enable multi-database creation in the database_objects resource

Overview

We still need to add multiple database creation in the database objects resource as seen at https://gitlab.com/gitlab-org/omnibus-gitlab/-/blob/b80d1237d8a8e38a58bbb230a7ba8e3fd1a17644/files/gitlab-cookbooks/gitlab/resources/database_objects.rb

Deliverables

1. If multiple databases are specified, then the database_objects resource will create them.
2. Test installation of application database
   • Single Node Database for the application
   • Multi-node database for the application
   • Geo replication single node database
   • Geo replication multi-node database
3. Test installation of Geo tracking
   • Single Node database
   • Multi-Database database