move k8s_namespace option to releases.exs

[kjubybot]

No description provided.

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.90%. Comparing base (6e99fab) to head (eac694d).
Report is 3 commits behind head on master.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2102      +/-   ##
==========================================
- Coverage   60.19%   59.90%   -0.29%     
==========================================
  Files         252      252              
  Lines        5235     5235              
==========================================
- Hits         3151     3136      -15     
- Misses       2084     2099      +15     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.