feat: remove unnecessary filter creations

[Cali0707]

The filters field is implicitly an AllFilter, which means that even if a user only creates a single filter two filters will get created. Similarly, if for some reason a user creates an all filter or any filter with only a single subfilter, we should not create the extra "wrapper" filter.

Proposed Changes

• Only create an all or any filter if the filters list is > 1

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707

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[Cali0707]

/cc @pierDipi @Leo6Leo

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.51%. Comparing base (6a1923b) to head (65e3e4b).
Report is 12 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4014      +/-   ##
==========================================
- Coverage   45.53%   45.51%   -0.02%     
==========================================
  Files         270      270              
  Lines       19925    19925              
==========================================
- Hits         9072     9069       -3     
- Misses      10127    10129       +2     
- Partials      726      727       +1     

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[Cali0707]

/retest-required

[Cali0707]

/cc @creydr @Leo6Leo

[creydr]

/lgtm

[pierDipi]

/retest

[creydr]

/test upgrade-tests

[creydr]

/test upgrade-tests

[creydr]

/test upgrade-tests

[creydr]

/retest

[creydr]

@Cali0707 can you rebase this? It seems I can't push to your branch to rebase on my own :/

Changes should be like creydr@216fe89

[github-actions]

This Pull Request is stale because it has been open for 90 days with
no activity. It will automatically close after 30 more days of
inactivity. Reopen with /reopen. Mark as fresh by adding the
comment /remove-lifecycle stale.

[Cali0707]

@Cali0707 can you rebase this? It seems I can't push to your branch to rebase on my own :/

Changes should be like creydr@216fe89

Whoops, I totally missed this. I'll rebase this branch. Sorry!

[Cali0707]

/test upgrade-tests
/cc @pierDipi @creydr

[creydr]

/lgtm

[knative-prow]

@Cali0707: 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
upgrade-tests_eventing-kafka-broker_main	65e3e4b	link	unknown	/test upgrade-tests
channel-reconciler-tests-ssl_eventing-kafka-broker_main	65e3e4b	link	unknown	/test channel-reconciler-tests-ssl
reconciler-tests-namespaced-broker_eventing-kafka-broker_main	65e3e4b	link	unknown	/test reconciler-tests-namespaced-broker

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