Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 test.parquet filter=lfs diff=lfs merge=lfs -text
 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/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7d97178834cd506b843b14e8e267874085daacfbdcdf57039f12f3f48af40ffd
+size 52441088