Bump Knative, Tekton and K8s imports

[mattmoor]

/kind cleanup

This is WIP until the change to pipeline lands, at which point I'll update here. I'm staging this to let CI do the heavy lifting for me.

cc @piyush-garg

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[tekton-robot]

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[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[mattmoor]

The pipeline PR this is pulling in: tektoncd/pipeline#4198

This should subsume: #1196 as well, I'll coordinate with @piyush-garg to make sure I didn't miss anything.

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[mattmoor]

/test pull-tekton-triggers-integration-tests

Not sure why this example would be affected, so let's see if it is a flake.

[mattmoor]

ok, so something about the label-selector example seems busted, I'll have to debug this one.

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[mattmoor]

Not sure if I've got things set up properly, but when I run this locally I am seeing:

{"level":"error","ts":"2021-08-29T22:56:07.221Z","logger":"eventlistener","caller":"sink/sink.go:228","msg":"could not resolve interceptor URL: url resolution failed for interceptor  with: clusterinterceptor.triggers.tekton.dev \"\" not found","knative.dev/controller":"eventlistener","eventlistener":"label-selector-listener","namespace":"default","eventlistenerUID":"3a1dd92d-f482-46b6-80e7-c01261fd5ab2","/triggers-eventid":"1cc871a9-b36c-4489-87f3-19f2a3d78421","/trigger":"matching-label-trigger","stacktrace":"github.com/tektoncd/triggers/pkg/sink.Sink.processTrigger\n\tgithub.com/tektoncd/triggers/pkg/sink/sink.go:228\ngithub.com/tektoncd/triggers/pkg/sink.Sink.HandleEvent.func4\n\tgithub.com/tektoncd/triggers/pkg/sink/sink.go:175"}

[mattmoor]

Ok, after a bunch of debugging I finally figured out that it was that the webhook was AWOL because of some logic in the knative/pkg bump that expanded the permissions needed to include Get on system.Namespace(). Once I finally grabbed the webhook logs it was blindingly obvious, but it took a while to get me there.

Here's the same change in pipelines when I bumped things there: tektoncd/pipeline@9d74f3f#diff-d5a724e46fb38be29b6dc700b6799f79f9d9178c6729ef5172d477f022918bb2R103

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[mattmoor]

To expand a bit... The test was failing because it relies on the defaulting webhook to convert the v1alpha1 resource into the right shape for the dispatch logic. In particular because this used github: (deprecated) instead of ref: {name: github} (new hotness) we were seeing this error.

[mattmoor]

The Pipelines PR landed, so I updated this and removed the WIP.

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-triggers-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
test/controller.go	71.1%	71.7%	0.6

[mattmoor]

Going to close this and fold what it does into #1207 since the main motivation for keeping it separate was to make reviewing the patches @piyush-garg incorporated clearer.