Upload dev.json with git-lfs

.gitattributes

@@ -26,3 +26,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zstandard filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 train.json filter=lfs diff=lfs merge=lfs -text
+dev.json filter=lfs diff=lfs merge=lfs -text

dev.json

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d024f371ef777162bbb94750e8d78015802e3a1c5b5e60ffb4d5ee3292aa2f66
+size 10943188