build(deps): update axum requirement from 0.6.0 to 0.7.1

Updates the requirements on [axum](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-v0.6.0...axum-v0.7.1)

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

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

Cargo.toml

@@ -19,7 +19,7 @@ all-features = true
 serde = "1"
 thiserror = "1"
 
-axum = { version = "0.6.0", features = [
+axum = { version = "0.7.1", features = [
     "matched-path",
 ], default-features = false }
 
@@ -33,7 +33,7 @@ tokio = { version = "1.22.0", features = ["full"] }
 serde = { version = "1", features = ["derive"] }
 tower-http = { version = "0.5.0", features = ["full"] }
 tower = { version = "0.4.13", features = ["full"] }
-axum = { version = "0.6.0", features = ["macros", "tokio"] }
+axum = { version = "0.7.1", features = ["macros", "tokio"] }
 rstest = "0.18.0"
 speculoos = "0.11.0"
 anyhow = "1.0.61"