Bump swift transformers (#129)

* bump swift transformers

* keep version at 2

---------

Co-authored-by: David Koski <46639364+davidkoski@users.noreply.github.com>

Author: awni

Package.swift

@@ -16,7 +16,7 @@ let package = Package(
     ],
     dependencies: [
         .package(url: "https://github.com/ml-explore/mlx-swift", from: "0.16.1"),
-        .package(url: "https://github.com/huggingface/swift-transformers", from: "0.1.11"),
+        .package(url: "https://github.com/huggingface/swift-transformers", from: "0.1.12"),
         .package(url: "https://github.com/1024jp/GzipSwift", "6.0.1" ... "6.0.1"),
         .package(url: "https://github.com/apple/swift-async-algorithms", from: "1.0.0"),
     ],