fix: explicit Tokenizers dependency for MLXInferenceCore to prevent module build races

Author: solderzzc

Package.swift

@@ -45,6 +45,7 @@ let package = Package(
                 .product(name: "MLXLMCommon", package: "mlx-swift-lm"),
                 .product(name: "MLXHuggingFace", package: "mlx-swift-lm"),
                 .product(name: "Hub", package: "swift-transformers"),
+                .product(name: "Tokenizers", package: "swift-transformers"),
             ],
             path: "Sources/MLXInferenceCore",
             swiftSettings: [