Update duckdb index files

.gitattributes

@@ -303,3 +303,4 @@ en_contracts/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 el_all/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_legislation/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_other/partial-validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+el_legislation/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

el_legislation/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:197c922a59fefa1e3adca3561135fa66c580a56666a8892d5ee9186bfc7ab1c4
+size 1183854592