Add timeouts tests for v1beta1 PipelineRun Defaults

[JeromeJu]

Changes

This commit adds the timeouts defaults for v1beta1 PipelineRun defaults. It aims to increase the coverage of the pipelineRun timeouts defaults in v1beta1.

/kind misc
followsup: #6546

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• [n/a] Has Docs if any changes are user facing, including updates to minimum requirements e.g. Kubernetes version bumps
• Has Tests included if any functionality added or changed
• Follows the commit message standard
• Meets the Tekton contributor standards (including functionality, content, code)
• Has a kind label. You can add one by adding a comment on this PR that contains /kind <type>. Valid types are bug, cleanup, design, documentation, feature, flake, misc, question, tep
• [n/a] Release notes block below has been updated with any user facing changes (API changes, bug fixes, changes requiring upgrade notices or deprecation warnings)
• [n/a] Release notes contains the string "action required" if the change requires additional action from users switching to the new release

Release Notes

NONE

[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1beta1/pipelinerun_defaults.go	93.3%	100.0%	6.7

[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1beta1/pipelinerun_defaults.go	93.3%	100.0%	6.7

[lbernick]

nice! Love the 💯 % coverage

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lbernick, vdemeester

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Needs approval from an approver in each of these files:

• pkg/apis/OWNERS [lbernick,vdemeester]

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[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1beta1/pipelinerun_defaults.go	93.3%	100.0%	6.7

[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1beta1/pipelinerun_defaults.go	93.3%	100.0%	6.7

[lbernick]

/lgtm