Use OrderedSet for resolving products

Sources/ScipioKit/DescriptionPackage.swift

@@ -149,7 +149,7 @@ struct DescriptionPackage {
 }
 
 extension DescriptionPackage {
-    func resolveBuildProducts() throws -> [BuildProduct] {
+    func resolveBuildProducts() throws -> OrderedSet<BuildProduct> {
         let targetsToBuild = try targetsToBuild()
         var products = try targetsToBuild.flatMap(resolveBuildProduct(from:))
 
@@ -186,7 +186,7 @@ extension DescriptionPackage {
             }
         }
 
-        return products.reversed()
+        return OrderedSet(products.reversed())
     }
 
     private func targetsToBuild() throws -> [ScipioResolvedModule] {
@@ -267,6 +267,11 @@ struct BuildProduct: Hashable, Sendable {
         target.underlying as? ScipioBinaryModule
     }
 
+    static func == (lhs: Self, rhs: Self) -> Bool {
+        lhs.target.name == rhs.target.name &&
+        lhs.package.identity == rhs.package.identity
+    }
+
     func hash(into hasher: inout Hasher) {
         // Important: Relevant for swift-6.0+ toolchain versions. For the versions below
         // this change has no effect as SwiftPM provides its own proper `Hashable`