Update gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/nop:v0.60.2 Docker digest to f6395fd

This MR contains the following updates:

Package	Type	Update	Change
gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/nop	ironbank-docker	digest	51df875 -> f6395fd

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