Add Deadline Exceeded to transient error in resolver

[khrm]

Sometime webhook or git server might take time, so we need to add deadline exceeded to transient error.

Changes

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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/reconciler/taskrun/resources/taskref.go	94.0%	93.2%	-0.8

[khrm]

/kind bug

[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/reconciler/taskrun/resources/taskref.go	94.0%	93.2%	-0.8

[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/reconciler/taskrun/resources/taskref.go	94.0%	93.2%	-0.8

[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/reconciler/taskrun/resources/taskref.go	94.0%	93.2%	-0.8

[khrm]

/hold
Need to test in live scenario.

[khrm]

We probably need this only for specific error like pipelines-webhook issue.

[gabemontero]

fyi @khrm I've opened #7909 and at the moment have updated my PR #7894 to say it fixes the new issue, where my PR checks for these transient errors on both the core controller and remote resolver side.

I know we only touched on this just briefly in one of our team meetings today. But either here or in slack let me know which PR you want to focus our efforts on. And of course, if you disagree with my checks in both controllers, let's discuss.

Thanks.

[khrm]

Merged. We can close this.
/close

[tekton-robot]

@khrm: PR needs rebase.

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