postgresql::server::grant does not honor connect_settings

Describe the Bug

I am using the postgresql::server::grant type to manage an external PostgreSQL server that is not managed with postgresql::server. When I use grant_role, I use the connect_settings parameter, and it works. When I do the same with grant, I get the following:

Mar  9 13:58:49 phoebe2 puppet-agent[1748481]: Could not retrieve catalog from remote server: Error 500 on SERVER: Server Error: Evaluation Error: Error while evaluating a Resource Statement, Postgresql::Server::Grant[SELECT ON SCHEMA brs TO brs]:
Mar  9 13:58:49 phoebe2 puppet-agent[1748481]:   parameter 'psql_db' expects a String value, got Undef
Mar  9 13:58:49 phoebe2 puppet-agent[1748481]:   parameter 'psql_user' expects a String value, got Undef
Mar  9 13:58:49 phoebe2 puppet-agent[1748481]:   parameter 'port' expects an Integer value, got Undef
Mar  9 13:58:49 phoebe2 puppet-agent[1748481]:   parameter 'group' expects a String value, got Undef
Mar  9 13:58:49 phoebe2 puppet-agent[1748481]:   parameter 'psql_path' expects a String value, got Undef (file: /etc/puppetlabs/code/environments/production/manifests/site.pp, line: 215) on node phoebe2.rac.berkeley.edu

Expected Behavior

I expect that by setting connect_settings, I won't need to set psql_db, psql_user, port, group, and psql_path separately.

Steps to Reproduce

1. Set up a connect_settings hash.
2. Create a task that uses the connect_settings without the other parameters.

Environment

• Version 8.0.0
• Platform Ubuntu 20.04.4, Postgresql 13.2

Start by comparing how postgresql::server::grant_role and postgresql::server::grant handle the connect_settings parameter. Reproduce the issue with connect_settings while leaving psql_db, psql_user, port, group, and psql_path unset. Done means grant uses the connection settings without requiring those parameters separately.