fix: revert swift-tools-version and library evolution to fix CI

Author: vkuttyp

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.0
+// swift-tools-version: 5.9
 import PackageDescription
 
 // SQLite is provided by the Apple SDK on Darwin; on Linux we need a system library.
@@ -154,6 +154,4 @@ let package = Package(
     ] + sqliteSystemLibTargets
 )
 
-var swiftSettings: [SwiftSetting] {
-    [.enableLibraryEvolution]
-}
+var swiftSettings: [SwiftSetting] { [] }