Update dependency vapor/vapor to from: "4.108.0" (#398)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Package.swift

@@ -9,7 +9,7 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/apple/swift-experimental-string-processing.git", branch: "main"),
         .package(url: "https://github.com/apple/swift-syntax", branch: "main"),
-        .package(url: "https://github.com/vapor/vapor.git", from: "4.107.0"),
+        .package(url: "https://github.com/vapor/vapor.git", from: "4.108.0"),
         .package(url: "https://github.com/vapor/leaf.git", from: "4.4.1"),
     ],
     targets: [