fix: log level for library from argocd

[wd]

This is a follow-up PR of #904

This environment variable can control the logs like below

time="2024-10-31T08:51:43Z" level=info msg=Trace args="[git config user.name argocd]" dir=/tmp/git-rainmaker3532605552 operation_name="exec git" time_ms=1.117718

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.70%. Comparing base (17a57da) to head (db82ff6).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #913   +/-   ##
=======================================
  Coverage   74.70%   74.70%           
=======================================
  Files          31       31           
  Lines        3922     3922           
=======================================
  Hits         2930     2930           
  Misses        856      856           
  Partials      136      136           

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