SetDefaults for embedded specs (Pipeline, Task) 🥄

[vdemeester]

Changes

Embedded TaskSpec and PipelineSpec were not being set defaults when
the resource embedding it was. This fixes that.

Signed-off-by: Vincent Demeester vdemeest@redhat.com

/cc @sbwsg @bobcatfish
Fix #2157

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Release Notes

Fix defaults not being applied for embedded Pipeline(s) and Task(s)

[tekton-robot]

The following is the coverage report on pkg/.
Say /test pull-tekton-pipeline-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1alpha1/pipelinerun_defaults.go	100.0%	93.8%	-6.2
pkg/apis/pipeline/v1beta1/pipeline_defaults.go	0.0%	33.3%	33.3

[vdemeester]

Will need to get cherry-pick in a 0.11 branch. I feel we need a label for this 👼

[vdemeester]

/test pull-tekton-pipeline-integration-tests

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbwsg

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[pritidesai]

/lgtm

Thanks @vdemeester 👍