fix(report): remove invalid resources in report

[MrCloudSec]

Context

Fix #6742 and #6728

Description

Remove invalid resources in Check Report in some checks.

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

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 88.73%. Comparing base (665bfa2) to head (3e33aef).
Report is 10 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6852      +/-   ##
==========================================
- Coverage   88.74%   88.73%   -0.02%     
==========================================
  Files        1200     1200              
  Lines       34611    34609       -2     
==========================================
- Hits        30716    30710       -6     
- Misses       3895     3899       +4     

Flag	Coverage Δ
prowler	88.73% <100.00%> (-0.02%)	⬇️

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

Components	Coverage Δ
prowler	88.73% <100.00%> (-0.02%)	⬇️
api	∅ <ø> (∅)

[jfagoagas]

Several things from the changes:

• Is it possible to create a resource_metadata instead of passing an empty dict?
• Could you please assert in all the tests affecting these checks the content of the resource metadata?