Lower swift-tools-version to 5.9 in Package.swift

MaxDesiatov · web-flow · commit 4f273aa79c19 · 2024-10-23T15:51:22.000+01:00
This would unblock swiftlang/swift-tools-support-core#488
diff --git a/Package.swift b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.10
+// swift-tools-version: 5.9
 
 import Foundation
 import PackageDescription
