Fix peerDependencies and shrinkwrap not fitting installed dependencies

[julrich]

This is a problem in jsonschema-utils, where we've added our modules as peerDependencies to ensure they are actually present, because we rely on that to load kickstartDS JSON Schemas (e.g. to layer types and schemas).

When those are added, and any other dependency changes the pnpm shrinkwrap / lockfile (e.g. because of install / uninstall), this leaves a warning for jsonschema-utils.

Only workaround currently: Remove peerDependencies, run an update (rush update), re-add peerDependencies, run an update again... which now works, and leaves the shrinkwrap / lockfile in a error- / warning-free state.

Relevant code: https://github.com/kickstartDS/schema/blob/main/tools/jsonschema-utils/package.json#L49-L55