feat(azure): New checks related to PostgreSQL service

[pedrooot]

Context

This pr adds 7 new checks related to PostgreSQL service

Description

The new checks are:

• [x] postgresql_flexible_server_enforce_ssl_enabled
• [x] postgresql_flexible_server_log_checkpoints_on
• [x] postgresql_flexible_server_log_connections_on
• [x] postgresql_flexible_server_log_disconnections_on
• [x] postgresql_flexible_server_connection_throttling_on
• [x] postgresql_flexible_server_log_retention_days_greater_3
• [x] postgresql_flexible_server_allow_access_services_disabled

License

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

[codecov[bot]]

Codecov Report

Attention: 42 lines in your changes are missing coverage. Please review.

Comparison is base (cc71249) 85.85% compared to head (1dfa971) 85.83%.

Files	Patch %	Lines
...rs/azure/services/postgresql/postgresql_service.py	49.39%	42 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3396      +/-   ##
==========================================
- Coverage   85.85%   85.83%   -0.03%     
==========================================
  Files         586      595       +9     
  Lines       18893    19106     +213     
==========================================
+ Hits        16220    16399     +179     
- Misses       2673     2707      +34     

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[pedrooot]

Updated to: https://github.com/prowler-cloud/prowler/pull/3409