Add ability to filter objects on injection controller promotion

[benmoss]

Currently we enqueue every object with no way to filter, which causes problems for eventing's source controller which reconciles duck CRDs.

ref: knative/eventing#5543

[codecov]

Codecov Report

Merging #2170 (e15d370) into main (a1bc850) will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2170      +/-   ##
==========================================
+ Coverage   65.88%   65.92%   +0.04%     
==========================================
  Files         223      223              
  Lines        9385     9398      +13     
==========================================
+ Hits         6183     6196      +13     
  Misses       2921     2921              
  Partials      281      281              

Impacted Files	Coverage Δ
.../injection-gen/generators/reconciler_controller.go	0.00% <ø> (ø)
changeset/commit.go	100.00% <0.00%> (ø)

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[knative-prow-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[markusthoemmes]

Great start, but I think it should be somewhat more generic to apply to all sorts of "global" events, i.e. resyncs. This also seems to be quite a bit of overlap with #1909, so maybe get together with @lberk to hash out which way to turn?

Thanks for dealing with this 🎉

[benmoss]

👍 that PR looks like a better approach, let me follow up with that

[benmoss]

/open

[benmoss]

/reopen

[knative-prow-robot]

@benmoss: Failed to re-open PR: state cannot be changed. The filter-promote-func branch was force-pushed or recreated.

In response to this:

/reopen

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