[release-1.16] Bump golang.org/x/crypto from 0.28.0 to 0.31.0

[knative-prow-robot]

This is an automated cherry-pick of #4186

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.51%. Comparing base (e88c7de) to head (a569b49).
Report is 2 commits behind head on release-1.16.

Additional details and impacted files

@@              Coverage Diff              @@
##           release-1.16    #4188   +/-   ##
=============================================
  Coverage         45.51%   45.51%           
=============================================
  Files               270      270           
  Lines             19925    19925           
=============================================
  Hits               9069     9069           
  Misses            10129    10129           
  Partials            727      727           

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[pierDipi]

/retest
/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: knative-prow-robot, pierDipi

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[creydr]

/retest-required

[creydr]

/retest-required

[knative-prow]

@knative-prow-robot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
reconciler-tests-namespaced-broker_eventing-kafka-broker_release-1.16	a569b49	link	true	/test reconciler-tests-namespaced-broker

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