🌱 webhook tests: remove webhook-operator resource limits

[joelanford]

The memory limit was causing the pod to be OOMKilled in my local execution of the experimental e2e tests. That limit is irrelevant to the purpose of the test, so it can be safely removed.

Description

Reviewer Checklist

• API Go Documentation
• Tests: Unit Tests (and E2E Tests, if appropriate)
• Comprehensive Commit Messages
• Links to related GitHub Issue(s)

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[tmshort]

/approve

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.80%. Comparing base (b50dbe0) to head (616a759).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2131      +/-   ##
==========================================
+ Coverage   72.79%   72.80%   +0.01%     
==========================================
  Files          79       79              
  Lines        7340     7340              
==========================================
+ Hits         5343     5344       +1     
+ Misses       1647     1646       -1     
  Partials      350      350              

Flag	Coverage Δ
e2e	43.46% <ø> (-0.05%)	⬇️
experimental-e2e	56.12% <ø> (-0.05%)	⬇️
unit	58.22% <ø> (ø)

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grokspawn, tmshort

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