Update gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter Docker tag to v0.32.1

This MR contains the following updates:

Package	Type	Update	Change
gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter	ironbank-docker	patch	v0.32.0 -> v0.32.1
gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter		patch	v0.32.0 -> v0.32.1
gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter	stage	patch	v0.32.0 -> v0.32.1

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