[main] ignore enable-tekton-oci-bundles feature flag

[jkandasa]

Changes

• feature flag enable-tekton-oci-bundles support removed and added into main stream. Supplying enable-tekton-oci-bundles=true can lead issue with pipeline controller. Hence ignore enable-tekton-oci-bundles values from TektonConfig CR and/or TektonPipelines CR.
• keeping enable-tekton-oci-bundles in operator to maintain the API compatibility
• originally removed from pipeline controller on Remove taskref/pipelineref deprecated bundle field pipeline#7789

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Run make test lint before submitting a PR
• Includes tests (if functionality changed/added)
• Includes docs (if user facing)
• Commit messages follow commit message best practices

See the contribution guide for more details.

Release Notes

pipeline feature flag `enable-tekton-oci-bundles` will be ignored.

[tekton-robot]

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[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/operator/v1alpha1/tektonpipeline_defaults.go	93.4%	93.3%	-0.1
pkg/reconciler/kubernetes/tektonpipeline/transform.go	78.5%	89.8%	11.3

[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/operator/v1alpha1/tektonpipeline_defaults.go	93.4%	93.3%	-0.1
pkg/reconciler/kubernetes/tektonpipeline/transform.go	78.5%	89.8%	11.3

[jkandasa]

/test pull-tekton-operator-integration-tests