test: add dnssuffix to api tests

[rjbrache]

PR Checklist

• Unit Tests have been added for new changes
• API tests have been updated if applicable
• All commented code has been removed
• If you've added a dependency, you've ensured license is compatible with Apache 2.0 and clearly outlined the added dependency.

What are you changing?

Anything the reviewer should know when reviewing this PR?

If the there are associated PRs in other repositories, please link them here (i.e. open-amt-cloud-toolkit/repo#365 )

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (ea2c973) 94.46% compared to head (c5fffd8) 94.46%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1124   +/-   ##
=======================================
  Coverage   94.46%   94.46%           
=======================================
  Files          83       83           
  Lines        3525     3525           
  Branches      603      603           
=======================================
  Hits         3330     3330           
  Misses        189      189           
  Partials        6        6           

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[github-actions]

🎉 This PR is included in version 2.12.4 🎉

The release is available on:

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• v2.12.4

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