Create taskrun/pipelinerun from oci bundle

[vdemeester]

Feature request

It should be possible to create a TaskRun (using tkn task start) from a oci bundle.
Today, we can create a TaskRun from an in-cluster Task definition. If oci bundles are enabled on a Pipeline instance, it's possible to create a TaskRun that uses the oci bundle image reference as Task definition reference. It should be possible to do that from the cli directly

The same should be possible for PipelineRun as well

Use case

Use oci bundle from the cli 👼🏼

UI Example

$ tkn task start oci://quay.io/vdemeest/my-task:0.1 -p foo=bar …

[tekton-robot]

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[vdemeester]

/remove-lifecycle stale
/area roadmap
/lifecycle frozen

[digglife]

There could be multiple layers(tasks) in one bundle image, do we need to cover that? Or we can assume there is only one task?