Make cluster configurable on resource

[pelmered]

No description provided.

[what-the-diff]

PR Summary

• Introduction of 'cluster' configuration option
  A new configuration option named 'cluster' has been introduced in the filament-shield configuration file. This allows users to modify and manage the 'cluster' setting more conveniently.

• Addition of getCluster method
  A new method called getCluster was added to the RoleResource file. This method fetches the cluster configuration set by users, which offers a way to retrieve these settings programmatically when needed.

[bezhanSalleh]

Thanks