Update Chaingaurd for Release Worker

[gabedos]

What does this PR do?

Atlas Domains recommend using the full email of the worker service rather than just the name (as used by the Agent Release worker using Atlas Classic)

[datadog-prod-us1-6]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 41.55% (+0.00%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: dd1483e | Docs | Datadog PR Page | Give us feedback!}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.39%. Comparing base (d1d2b65) to head (dd1483e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2977   +/-   ##
=======================================
  Coverage   41.39%   41.39%           
=======================================
  Files         331      331           
  Lines       28911    28911           
=======================================
  Hits        11969    11969           
  Misses      16086    16086           
  Partials      856      856           

Flag	Coverage Δ
unittests	41.39% <ø> (ø)

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