feat(entra): add new check entra_authpolicy_guest_invite_only_for_admin_roles

[danibarranqueroo]

Context

This PR introduces a new check to ensure only specific administrator roles can invite guest users.

Limiting the ability to invite guest users to this specific role ensures better control over who can grant access to external users, reducing the risk of unauthorized sharing and maintaining a secure collaboration environment.

It's important to know that the minimum requirement is limiting invitations to admins and Guest Inviters, a more restrictive setting is acceptable (this is None can invite).

Description

Added new check entra_authpolicy_guest_invite_only_for_admin_roles with its unit tests.

Checklist

• Are there new checks included in this PR? Yes / No
  • If so, do we need to update permissions for the provider? Please review this carefully.
• Review if the code is being covered by tests.
• Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
• Review if backport is needed.
• Review if is needed to change the Readme.md

API

• Verify if API specs need to be regenerated.
• Check if version updates are required (e.g., specs, Poetry, etc.).
• Ensure new entries are added to CHANGELOG.md, if applicable.

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.66%. Comparing base (f2e19d3) to head (0ac9821).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7241      +/-   ##
==========================================
- Coverage   92.23%   88.66%   -3.58%     
==========================================
  Files          81     1220    +1139     
  Lines        7356    35571   +28215     
==========================================
+ Hits         6785    31539   +24754     
- Misses        571     4032    +3461     

Flag	Coverage Δ
api	?
prowler	88.66% <100.00%> (?)

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Components	Coverage Δ
prowler	88.66% <100.00%> (∅)
api	∅ <ø> (∅)

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