Update SQL dependency to 2.1.0

SQLConnectable protocol is undeclared in SQL 2.0.2

Author: baarde

Package.swift

@@ -23,7 +23,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-nio.git", from: "1.0.0"),
 
         // *️⃣ Build SQL queries in Swift. Extensible, protocol-based design that supports DQL, DML, and DDL.
-        .package(url: "https://github.com/vapor/sql.git", from: "2.0.2"),
+        .package(url: "https://github.com/vapor/sql.git", from: "2.1.0"),
     ],
     targets: [
         .target(name: "PostgreSQL", dependencies: ["Async", "Bits", "Core", "Crypto", "DatabaseKit", "NIO", "Service", "SQL"]),