chore(iam): enhance iam_role_cross_service_confused_deputy_prevention recommendation

[HugoPBrito]

Context

A user reported that the recommendation text for the check iam_role_cross_service_confused_deputy_prevention was not entirely accurate in certain cases:

Fix #7021

Description

This pull request aims to enhance the recommendation metadata field to ensure it is more precise and applicable to a broader range of scenarios.

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 88.67%. Comparing base (8a144a4) to head (dbc4dfd).
Report is 14 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7023   +/-   ##
=======================================
  Coverage   88.67%   88.67%           
=======================================
  Files        1200     1200           
  Lines       34647    34647           
=======================================
+ Hits        30722    30724    +2     
+ Misses       3925     3923    -2     

Flag	Coverage Δ
prowler	88.67% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
prowler	88.67% <ø> (+<0.01%)	⬆️
api	∅ <ø> (∅)

[MrCloudSec]

Thanks @HugoPBrito !!

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v4.6
✅	v5.3

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details