bgp_af - Add support for 'dup-addr-detection' commands

[ArunSaravananBalachandran]

SUMMARY

Incorporate the below changes in 'bgp_af' module.

• Add support for 'dup-addr-detection' commands.
  • Update regression and UT cases to cover the new options.
• Fix ansible-lint failures.
• Fix regression test cleanup tasks.

GitHub Issues

List the GitHub issues impacted by this PR. If no Github issues are affected, please indicate this with "N/A".

GitHub Issue #
N/A

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• sonic_bgp_af

OUTPUT

ADDITIONAL INFORMATION

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility or have provided any relevant "breaking_changes" descriptions in a "fragment" file in the "changelogs/fragments" directory of this repository.
• I have provided a summary for this PR in valid "fragment" file format in the "changelogs/fragments" directory of this repository branch. Reference : Ansible Change Log Document

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

Regression report: bgp_af_regression_report-2024-09-20-16-19-03.pdf