Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ data/test.csv filter=lfs diff=lfs merge=lfs -text
 data/train.csv filter=lfs diff=lfs merge=lfs -text
 data/valid.csv filter=lfs diff=lfs merge=lfs -text
 tatiana-merz--cyrillic_turkic_langs/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+tatiana-merz--cyrillic_turkic_langs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

tatiana-merz--cyrillic_turkic_langs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:252a174571e3f2e382463e71dbc259071b2dbcbf13b4b89d593dfacb98ae514b
+size 8400896