Allow compiling on macOS

Author: fabianfett

Package.swift

@@ -11,6 +11,7 @@ let defaultSwiftSettings: [SwiftSetting] =
 
 let package = Package(
     name: "swift-aws-lambda-runtime",
+    platforms: [.macOS(.v10_15)],
     products: [
         .library(name: "AWSLambdaRuntime", targets: ["AWSLambdaRuntime"]),
         // plugin to package the lambda, creating an archive that can be uploaded to AWS

Package@swift-6.0.swift

@@ -13,6 +13,7 @@ let defaultSwiftSettings: [SwiftSetting] = [
 
 let package = Package(
     name: "swift-aws-lambda-runtime",
+    platforms: [.macOS(.v10_15)],
     products: [
         .library(name: "AWSLambdaRuntime", targets: ["AWSLambdaRuntime"]),
         // plugin to package the lambda, creating an archive that can be uploaded to AWS

Tests/AWSLambdaRuntimeTests/LambdaLocalServerTests.swift

@@ -22,6 +22,7 @@ import Testing
 extension LambdaRuntimeTests {
 
     @Test("Local server respects LOCAL_LAMBDA_PORT environment variable")
+    @available(LambdaSwift 2.0, *)
     func testLocalServerCustomPort() async throws {
         let customPort = 8080