Fixed an issue building since routing-kit was on an older version

Author: dimitribouniol

Package.swift

@@ -18,7 +18,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/vapor/vapor.git", from: "4.90.0"),
+        .package(url: "https://github.com/vapor/vapor.git", from: "4.91.1"),
     ],
     targets: [
         .target(