Update axum-test requirement from 14.2.2 to 15.0.1

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

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

Cargo.toml

@@ -33,4 +33,4 @@ anyhow = "1.0.75"
 tokio = { version = "1.34", features = ["full"] }
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 thiserror = "1.0.50"
-axum-test = "14.2.2"
+axum-test = "15.0.1"