Improve the time to run e2e tests

[aledbf]

What this PR does / why we need it:

This change reduces the setup time of the e2e tests by half, decreasing the total time from ~24 to ~18 minutes.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

[codecov-io]

Codecov Report

Merging #4535 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4535      +/-   ##
==========================================
+ Coverage   59.05%   59.06%   +0.01%     
==========================================
  Files          89       89              
  Lines        6811     6811              
==========================================
+ Hits         4022     4023       +1     
- Misses       2350     2351       +1     
+ Partials      439      437       -2

Impacted Files	Coverage Δ
internal/watch/file_watcher.go	80.76% <0%> (-3.85%)	⬇️
internal/ingress/metric/collectors/process.go	90.42% <0%> (+2.12%)	⬆️

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[aledbf]

/retest

[ElvinEfendi]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, ElvinEfendi

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