[Enhancement] Unit test shoud support invoking a rule that has an argument

**Is your feature request related to a problem? Please describe.**

I'm creating cfn-guard rules for evaluating Resource Policies. I will use these rules from different entry points: CloudFormation and AWS Config. This means that the extraction path from these two use cases will be different.
However the Resource policy evaluation on the statements will be the exact same.
For this reason I've created rules with arguments to evaluate the policy.

However, I'm not able to do unit tests on rules that expect an argument.

**Describe the solution you'd like**

In the unit test file, I would like to be able to specify the argument, where this will be the value in the input. A nice feature would be if we could specify the extraction path such as $this/PolicyDocument

expectations:
rules:
check_principal_deny($this)

**Describe alternatives you've considered**

The alternative at the moment is to have tests duplicated from different extraction points, which makes hard to unit test and maintain it

Start by locating the unit test file and the expectations.rules handling for parameterized calls such as check_principal_deny($this); inspect how extraction paths are represented. Done when tests can supply an argument or extraction path and reuse the same rule across entry points without duplicated tests.

Written by the indexing model from the issue text.