fix(backup): modify list recovery points call

[danibarranqueroo]

Context

@jfagoagas notified an issue when an object is empty in the call from Backup “Listing Recovery Points”:

Description

Added a condition to check if the recovery point list is empty or if the ARN does not exist. In such cases, no recovery point will be added to the list.

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 89.96%. Comparing base (50796be) to head (12bb022).
Report is 34 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5996      +/-   ##
==========================================
+ Coverage   89.95%   89.96%   +0.01%     
==========================================
  Files        1147     1147              
  Lines       35608    35611       +3     
==========================================
+ Hits        32031    32039       +8     
+ Misses       3577     3572       -5     

Components	Coverage Δ
prowler	89.96% <100.00%> (+0.01%)	⬆️
api	∅ <ø> (∅)

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v5.0

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v4.6

Questions ?

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[prowler-bot]

💔 All backports failed

Status	Branch	Result
❌	5.0	The branch "5.0" does not exist

Manual backport

To create the backport manually run:

backport --pr 5996

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v5.0

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v5.0

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details

[prowler-bot]

💚 All backports created successfully

Status	Branch	Result
✅	v5.0

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details