- Use `rust-toolchain.toml` to specify tools.
- Drop the unused version field from the compose files.
- Use a modern Docker base for the dev-auth-webhook.
- Handle signals in the test servers so `docker stop` is quick.
- Upgrade Jaeger.
V3_GIT_ORIGIN_REV_ID: b5fee1d5dc953a1fdb0aabd75ba02df6846b7518