chore(Deps): bump github.com/swiftlang/swift-syntax (#159)

Bumps [github.com/swiftlang/swift-syntax](https://github.com/swiftlang/swift-syntax) from 602.0.0 to 603.0.0.
- [Release notes](https://github.com/swiftlang/swift-syntax/releases)
- [Commits](swiftlang/swift-syntax@602.0.0...603.0.0)

---
updated-dependencies:
- dependency-name: github.com/swiftlang/swift-syntax
  dependency-version: 603.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Package.swift

@@ -20,7 +20,7 @@ let package = Package(
         .plugin(name: "MetaProtocolCodable", targets: ["MetaProtocolCodable"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", "509.1.0"..<"603.0.0"),
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", "509.1.0"..<"604.0.0"),
         .package(url: "https://github.com/apple/swift-collections.git", from: "1.0.4"),
         .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.2.2"),
         .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.0.0"),