Update axum-extra requirement from 0.10 to 0.12

Updates the requirements on [axum-extra](https://github.com/tokio-rs/axum) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/axum/releases)
- [Changelog](https://github.com/tokio-rs/axum/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tokio-rs/axum/commits)

---
updated-dependencies:
- dependency-name: axum-extra
  dependency-version: 0.12.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

server/Cargo.toml

@@ -12,7 +12,7 @@ keywords.workspace = true
 
 [dependencies]
 axum = { version = "0.8", features = ["ws"] }
-axum-extra = { version = "0.10", features = ["typed-header"] }
+axum-extra = { version = "0.12", features = ["typed-header"] }
 async-trait = "0.1"
 blake2 = "0.10"
 futures = "0.3"