Create a command to resolve image tags to digests in Dockerfiles

[dekkagaijin]

e.g. cosign dockerfile resolve

As part of fixing https://github.com/sigstore/cosign/issues/648, we should create a surface which resolves mutable image tags into immutable image digests. Ideally it would be able to both a) update the Dockerfile in place and b) output an updated Dockerfile to stdout

[developer-guy]

hello, short notice, we'll be working on this with @Dentrax FYI. 🙋🏻‍♂️

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[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 5 days.

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This issue was closed because it has been stalled for 5 days with no activity.