BUX-489: Admin get destinations

[Nazarii-4chain]

Changed method to GET

Pull Request Checklist

• 📖 I created my PR using provided : CODE_STANDARDS
• 📖 I have read the short Code of Conduct: CODE_OF_CONDUCT
• 🏠 I tested my changes locally.
• ✅ I have provided tests for my changes.
• 📝 I have used conventional commits.
• 📗 I have updated any related documentation.
• 💾 PR was issued based on the Github or Jira issue.

[mergify]

Welcome to our open-source project @Nazarii-4chain! 💘

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9838f7a) 39.55% compared to head (ae21157) 39.55%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #435   +/-   ##
=======================================
  Coverage   39.55%   39.55%           
=======================================
  Files          47       47           
  Lines        1704     1704           
=======================================
  Hits          674      674           
  Misses        990      990           
  Partials       40       40           

Flag	Coverage Δ
unittests	39.55% <ø> (ø)

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