feat(compliance): add ENSRD2022 for Azure and GCP

[pedrooot]

Description

This pull request introduces several changes to enhance the compliance reporting capabilities for Azure and GCP in the prowler project. The most significant changes include the addition of new compliance frameworks for Azure and GCP, updates to the prowler main script to handle these new frameworks, and the creation of corresponding test cases.

Thanks @normanecg for the GCP and Azure ENS json ❤️

Compliance Frameworks Enhancements:

• prowler/__main__.py: Added support for Azure and GCP ENS compliance frameworks by importing AzureENS and GCPENS classes and updating the prowler function to handle these new compliance types. [1] [2] [3]
• prowler/lib/outputs/compliance/ens/ens_azure.py: Introduced the AzureENS class to represent Azure ENS compliance output, including methods to transform findings into Azure ENS compliance format.
• prowler/lib/outputs/compliance/ens/ens_gcp.py: Introduced the GCPENS class to represent GCP ENS compliance output, including methods to transform findings into GCP ENS compliance format.

Codebase Updates:

• prowler/lib/outputs/compliance/ens/ens.py: Modified the get_ens_table function to generalize the ENS compliance framework handling, removing the specific check for AWS.
• prowler/lib/outputs/compliance/ens/models.py: Added AzureENSModel and GCPENSModel classes to generate findings' output in CSV ENS format for Azure and GCP, respectively.

Documentation and Testing:

• README.md: Updated the compliance frameworks section to reflect the new compliance checks available for Azure and GCP.
• tests/lib/outputs/compliance/ens/ens_azure_test.py: Added test cases for the AzureENS class to ensure the correct transformation of findings and proper CSV output generation.

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 86.31579% with 13 lines in your changes missing coverage. Please review.

Project coverage is 89.88%. Comparing base (f3cfaca) to head (b11dbad).
Report is 60 commits behind head on master.

Files with missing lines	Patch %	Lines
prowler/__main__.py	0.00%	12 Missing ⚠️
prowler/lib/outputs/compliance/ens/ens.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5746      +/-   ##
==========================================
- Coverage   89.89%   89.88%   -0.01%     
==========================================
  Files        1128     1135       +7     
  Lines       35182    35415     +233     
==========================================
+ Hits        31628    31834     +206     
- Misses       3554     3581      +27     

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[jfagoagas]

Reviewed IRL, thanks for this great amount of work 🚀