Replace use of deprecated Package.init

CraigSiemens · CraigSiemens · commit a4ed70b5f9cc · 2026-03-24T10:54:34.000-06:00
diff --git a/Package.swift b/Package.swift
@@ -62,5 +62,5 @@ let package = Package(
  #endif
         return targets
     }(),
-    swiftLanguageVersions: [.v5]
+    swiftLanguageModes: [.v5]
 )
