Tidy go.mod for various components

[afrittoli]

Related to: #2197

Changes

Running go mod tidy on several components.

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/kind misc

[afrittoli]

/test plumbing-unit-tests

[tekton-robot]

@afrittoli: The specified target(s) for /test were not found. The following commands are available to trigger required jobs:

• /test pull-dogfooding-mario-test
• /test pull-tekton-plumbing-check-testgrid-config

In response to [this](https://github.com/tektoncd/plumbing/pull/2225#issuecomment-2388667836): >/test plumbing-unit-tests Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[tekton-robot]

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