fix(k8s): do not raise error when unable to list roles

[MrCloudSec]

Context

When scanning from remote, the users don't have permissions to list all clusterrolebindings.

Fix #5452 (reply in thread).

Description

Low the error severity and do not raise an error when Prowler doesn't have permissions to list all clusterrolebindings.

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.

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

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 89.79%. Comparing base (694cee1) to head (272de92).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...rowler/providers/kubernetes/kubernetes_provider.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5630      +/-   ##
==========================================
+ Coverage   89.77%   89.79%   +0.01%     
==========================================
  Files        1111     1111              
  Lines       34468    34466       -2     
==========================================
+ Hits        30944    30949       +5     
+ Misses       3524     3517       -7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.