Convert weights to .safetensors

Using https://github.com/huggingface/safetensors and https://github.com/huggingface/transformers/pull/19175, Hat/tip

@narsil
and

@sgugger
🔥

.gitattributes

@@ -15,3 +15,4 @@
 *.pt filter=lfs diff=lfs merge=lfs -text
 *.pth filter=lfs diff=lfs merge=lfs -text
 pytorch_model.bin filter=lfs diff=lfs merge=lfs -text
+model.safetensors filter=lfs diff=lfs merge=lfs -text

model.safetensors

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:decc811bc764b0e94f1adc16b37a127300201eb8b5e4b733a89185d68b9d81c9
+size 440168896