WIP: Bump cert manager

[matzew]

Fixes #

Proposed Changes

-bump to matching version from serving and using clientset (see knative/serving#15703)

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

Docs

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: matzew

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[matzew]

needs to go in after 8481

[matzew]

/hold
lets not yet bump... but leave it open

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.64%. Comparing base (9a7c6d5) to head (2652251).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8484      +/-   ##
==========================================
- Coverage   62.77%   62.64%   -0.14%     
==========================================
  Files         395      397       +2     
  Lines       24108    24241     +133     
==========================================
+ Hits        15135    15185      +50     
- Misses       8166     8247      +81     
- Partials      807      809       +2     

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[knative-prow]

@matzew: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
unit-tests_eventing_main	2652251	link	true	/test unit-tests
reconciler-tests_eventing_main	2652251	link	true	/test reconciler-tests

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