test(e2e): Add fixtures for process control to e2e test suite

[jannfis]

What does this PR do / why we need it:

Add process control fixtures to e2e test suite

Which issue(s) this PR fixes:

Fixes #?

How to test changes / Special notes to the reviewer:

1. Start e2e enviroment: make start-e2e2
2. In another terminal, run the sanity tests: go test -testify.m ^(Test_Goreman_StartStopStatus_Sanity)$ github.com/argoproj-labs/argocd-agent/test/e2e2 -v -count=1 -race -failfast

Checklist

• Documentation update is required by this PR (and has been updated) OR no documentation update is required.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.41%. Comparing base (5ffd823) to head (bf49062).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #311   +/-   ##
=======================================
  Coverage   45.41%   45.41%           
=======================================
  Files          78       78           
  Lines        7375     7375           
=======================================
  Hits         3349     3349           
  Misses       3748     3748           
  Partials      278      278           

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