Update pubsweet-server peer dependency

Update the yarn.lock too?

It's a peer dependency, so yarn.lock doesn't change (I've just updated the title of the MR to make that clearer).

changed title from Update pubsweet-server dependency to Update pubsweet-server peer dependency

Sorry. LGTM!

merged

mentioned in commit e26f8b32

My turn for a - this was already covered in pubsweet-cli!109 (merged) (which needs to be merged at the same time as the pubsweet-server dependency is updated).