New patch release for deepsize to use latest deepsize-derive

[adamchalmers]

Thank you for cutting the new deepsize-derive release (#17), much appreciated. Could you please also cut a minor release for Deepsize which bumps its dependency on deepsize-derive from 0.1.1 to 0.1.2? That way when I use Deepsize, I will transitively pull in the newer deps.

[Aeledfyr]

Since it is a semver compatible version change, cargo should use the latest version of deepsize-derive without requiring a version bump of deepsize. You may have to use cargo update or delete Cargo.lock to unpin the old version of deepsize-derive.

I've tested creating a new project that just depends on deepsize version 0.2, and (according to cargo-tree) it uses in deepsize-derive 0.1.2 without any changes.