Update duckdb index files

.gitattributes

@@ -74,3 +74,4 @@ de_all/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 de_other/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+el_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

el_contracts/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bed69e8d4a5e6007498b22795daec8ee8ba5e81f3b6a6200e5e4be46fb4294e2
+size 11022336