Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 souljoy--COVID-19_weibo_emotion/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 souljoy--COVID-19_weibo_emotion/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+souljoy--COVID-19_weibo_emotion/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

souljoy--COVID-19_weibo_emotion/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d3eba3d8060a8e5c4cc109b2f8f3e421b574d768f65488b95b8a85c853752036
+size 1847296