Update duckdb index files

.gitattributes

@@ -57,3 +57,4 @@ train.parquet filter=lfs diff=lfs merge=lfs -text
 validation.parquet filter=lfs diff=lfs merge=lfs -text
 pszemraj--scientific_lay_summarisation-plos-norm/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pszemraj--scientific_lay_summarisation-plos-norm/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pszemraj--scientific_lay_summarisation-plos-norm/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pszemraj--scientific_lay_summarisation-plos-norm/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:09a7ded173787ae4e602cfba9bc9862690a449142d83f82fabb8c6432e532ffc
+size 937963520