Update utoipa-swagger-ui requirement from 6 to 7

Updates the requirements on [utoipa-swagger-ui](https://github.com/juhaku/utoipa) to permit the latest version.
- [Release notes](https://github.com/juhaku/utoipa/releases)
- [Commits](juhaku/utoipa@utoipa-swagger-ui-6.0.0...utoipa-swagger-ui-7.0.0)

---
updated-dependencies:
- dependency-name: utoipa-swagger-ui
  dependency-type: direct:production
...

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

judger/Cargo.toml

@@ -22,7 +22,7 @@ actix-web = "4"
 
 # Openapi generate
 utoipa = { version = "4", features = ["actix_extras"] }
-utoipa-swagger-ui = { version = "6", features = ["actix-web"] }
+utoipa-swagger-ui = { version = "7", features = ["actix-web"] }
 
 # Support global variable
 lazy_static = "1.4"