Find a solution that will make sure the versions of our dependencies are compatible without unncessarily updating patch versions

see https://github.com/googleapis/google-cloud-node-core/pull/932

basically, for these reasons, I don't want to use syncpack anymore: https://github.com/googleapis/google-cloud-node-core/pull/926#issuecomment-4051434741

But in general I still do want a solution that figures out if we have incompatible major versions within a library. Maybe this will become easier if/when we decide this monorepo should live at HEAD (rather than pulling from npm).

Some options: https://github.com/QuiiBz/sherif