AuthZ: Provide function to update AppliedEventPoliciesStatus based on a given list of applying policies

[creydr]

Add another function to auth package to allow updating a resources AppliedEventPoliciesStatus based on a given list of applying policies.

[knative-prow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 67.38%. Comparing base (bf945f9) to head (40c4c80).
Report is 9 commits behind head on main.

Files	Patch %	Lines
pkg/auth/event_policy.go	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           main    #8173       +/-   ##
=========================================
+ Coverage      0   67.38%   +67.38%     
=========================================
  Files         0      371      +371     
  Lines         0    18191    +18191     
=========================================
+ Hits          0    12258    +12258     
- Misses        0     5152     +5152     
- Partials      0      781      +781     

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[pierDipi]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: creydr, pierDipi

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