Draft: Removals for v2

Package.swift

@@ -8,10 +8,10 @@ let swiftSettings: [SwiftSetting] = [
 let package = Package(
     name: "postgres-nio",
     platforms: [
-        .macOS(.v10_15),
-        .iOS(.v13),
-        .watchOS(.v6),
-        .tvOS(.v13),
+        .macOS(.v13),
+        .iOS(.v16),
+        .watchOS(.v9),
+        .tvOS(.v16),
     ],
     products: [
         .library(name: "PostgresNIO", targets: ["PostgresNIO"]),

Sources/PostgresNIO/Connection/PostgresConnection+Configuration.swift

@@ -246,7 +246,7 @@ extension PostgresConnection {
         }
 
         let connection: InternalConfiguration.Connection
-        let username: String?
+        let username: String
         let password: String?
         let database: String?
         var tls: Configuration.TLS