Update model with version trained on studio recordings.

This updated model has higher quality Luganda pronunciation, and also supports code switching with English.

model.ckpt

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f0cf4ffb3b08e20f22d314d86569e935e0d87bfce3f67714a123a75be024f771
+oid sha256:d974eb14aed03438e608ed80f7c9418b333a2d17c4f02f510ed9e4d74c75f214
 size 112830206