Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 train.jsonl filter=lfs diff=lfs merge=lfs -text
+artemkramov--coreference-dataset-ua/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

artemkramov--coreference-dataset-ua/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:653aabe8a64a35c3727da6c48db7506833c2724b764c8f7772f2e520aaee2fde
+size 115093504