chore: Update cert-manager libs and resources to 1.20.3

[dsimansk]

Fixes #

Proposed Changes

• chore: Update cert-manager libs and resources to 1.20.3

It's cert-manger with matching k8s.io/client-go version to our current dependency tree. I'll follow-up on updating EKB to the same version. It came first in EKB as the quiet old cert-manager version is unstable to install sometimes due to init container timing issues.

Pre-review Checklist

• At least 80% unit test coverage
• E2E tests for any new behavior
• Docs PR for any user-facing impact
• Spec PR for any new API feature
• Conformance test for any change to the spec

Release Note

chore: Update cert-manager libs and resources to 1.20.3

/cc @gauron99 @Cali0707 @creydr

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.08%. Comparing base (32583ea) to head (3484ded).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9259      +/-   ##
==========================================
+ Coverage   51.06%   51.08%   +0.02%     
==========================================
  Files         411      411              
  Lines       22120    22120              
==========================================
+ Hits        11295    11300       +5     
+ Misses       9951     9946       -5     
  Partials      874      874              

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[dsimansk]

/retest

[dsimansk]

@gauron99 trying to fix the flake popping up here: #9260

alsow downstream rabbitmq is relevant, because rabbitmq gomod controller-runtime version is not compatible with updated version this PR pulled in.

[dsimansk]

/test reconciler-tests

[gauron99]

/lgtm
/hold

[gauron99]

if anyone else wants to review ^

[dsimansk]

/override ?

[knative-prow]

@dsimansk: /override requires failed status contexts, check run or a prowjob name to operate on.
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• reconciler-tests_eventing_main
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• tide
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• upgrade-tests_eventing_main

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[dsimansk]

/override "style / Golang / Lint"

[knative-prow]

@dsimansk: Overrode contexts on behalf of dsimansk: style / Golang / Lint

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In response to this:

/override "style / Golang / Lint"

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[dsimansk]

/unhold