build(deps): bump axum from 0.7.9 to 0.8.9

Bumps [axum](https://github.com/tokio-rs/axum) from 0.7.9 to 0.8.9.
- [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-v0.7.9...axum-v0.8.9)

---
updated-dependencies:
- dependency-name: axum
  dependency-version: 0.8.9
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -37,7 +37,7 @@ prost-types = { version = "0.14", optional = true }
 
 [dev-dependencies]
 async-std = { version = "1", features = ["attributes"] }
-axum = "0.7"
+axum = "0.8"
 criterion = "0.5"
 futures = "0.3"
 http-types = "2"