Add e2e tests for apps in any namespace feature

[ishitasequeira]

Add e2e tests for apps in any namespace feature

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 75.95%. Comparing base (3e7378a) to head (162769e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #844   +/-   ##
=======================================
  Coverage   75.95%   75.95%           
=======================================
  Files          31       31           
  Lines        3198     3198           
=======================================
  Hits         2429     2429           
  Misses        635      635           
  Partials      134      134           

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[ishitasequeira]

@jannfis @chengfang We would need the PR https://github.com/argoproj-labs/argocd-image-updater/pull/854 to be merged in. I tested the e2e test with the code changes in the PR and it works successfully.

I will check with the contributor to fix the unit tests in the PR.