Fix incorrect format specifier in test files

[Yongxuanzhang]

Changes

Prior to this commit the unit tests of remote_test.go will fail in Go 1.18.
error log:

# github.com/tektoncd/pipeline/test
test/remote_test.go:50:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:56:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:61:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:66:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:71:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:87:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:94:3: (*testing.common).Errorf does not support error-wrapping directive %w
test/remote_test.go:99:3: (*testing.common).Errorf does not support error-wrapping directive %w

FAIL    github.com/tektoncd/pipeline/test [build failed]

Related issues:

• x/tools/go/analysis/passes/printf: Errorf functions are treated as fmt.Errorf-wrappers golang/go#47641
• Few of the kubernetes tests are failing due to build failures kubernetes/kubernetes#105097

This commit converts all the %w in remote_test.go to %v to fix failing tests.

Please let me know if this makes sense or you have better ideas. Thanks in advance!

Submitter Checklist

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

• Tests included if any functionality added or changed
• Follows the commit message standard
• Meets the Tekton contributor standards (including
  functionality, content, code)
• Release notes block below has been filled in or deleted (only if no user facing changes)

Release Notes

NONE

[Yongxuanzhang]

I wonder if I should open an issue and link it to this PR in our pipeline repo?

[abayer]

/lgtm

Seems fine without an issue to me!

[pritidesai]

sounds good, thank you @Yongxuanzhang 👍

[tekton-robot]

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