chore: bump mlx-swift-lm submodule to b463 (DeepSeek-V4 merged to main)

solderzzc · solderzzc · commit dce1af11b494 · 2026-04-24T14:06:35.000-07:00
diff --git a/mlx-swift-lm b/mlx-swift-lm
@@ -1 +1 @@
-Subproject commit 8a8da296dc7941ed530761c7ce7fb46f5008345c
+Subproject commit c154080dad320e3c8bd4aef18b6737c1e79af6a0
