[transition] schemars 0.8 -> 1.1

To package the latest version of uv, a newer version of schemars would be good. Here's a checklist for that:

• schemars

List of dependencies shown by ./dev/list-rdeps.sh:

• auditable-serde
• four-cc
• histogram
• ipnetwork
• kurbo
• newtype-uuid
• nftables
• pep508-rs
• serde-with
• starship-battery
• trycmd

Probably other dependencies that are missed by this script?