Update axum-extra requirement from 0.8.0 to 0.9.0

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](tokio-rs/axum@axum-extra-v0.8.0...axum-extra-v0.9.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -15,7 +15,7 @@ anyhow = "1.0.75"
 askama = { version = "0.12.1", features = ["with-axum"] }
 askama_axum = "0.3.0"
 axum = { version = "0.6.20", features = ["macros"] }
-axum-extra = { version = "0.8.0", features = ["protobuf"] }
+axum-extra = { version = "0.9.0", features = ["protobuf"] }
 chrono = "0.4.31"
 dhat = { version = "0.3.2", optional = true }
 dotenv = "0.15.0"