feat(cloudwatch): add new check cloudwatch_alarm_actions_enabled

[danibarranqueroo]

Context

This check ensures that CloudWatch alarm actions are enabled (ActionEnabled should be set to true). The check fails if any CloudWatch alarm action is deactivated. Without active alarm actions, you may not be alerted to security or operational issues, potentially leading to delayed responses and increased risk.

Description

Added new check cloudwatch_alarm_actions_enabled with its unit tests.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 89.24%. Comparing base (bc1e6c0) to head (52bbad6).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5416      +/-   ##
==========================================
+ Coverage   89.18%   89.24%   +0.05%     
==========================================
  Files        1037     1040       +3     
  Lines       32004    32108     +104     
==========================================
+ Hits        28544    28655     +111     
+ Misses       3460     3453       -7     

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