chore: branch rulesets

[Zerohertz]

Chore

• main branch push 시 오류 test (related: ci/cd: GitHub Actions & Argo CD #22 (comment))
• Repository admin을 Bypass list으로 사용

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 23.51%. Comparing base (73fafe0) to head (7090341).
Report is 6 commits behind head on main.

✅ All tests successful. No failed tests found.

@@            Coverage Diff            @@
##               main      #29   +/-   ##
=========================================
  Coverage     23.51%   23.51%           
  Complexity       37       37           
=========================================
  Files            37       37           
  Lines           353      353           
  Branches         18       18           
=========================================
  Hits             83       83           
  Misses          270      270           

Components	Coverage Δ
user	∅ <ø> (∅)

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