Update duckdb index files

.gitattributes

@@ -58,3 +58,4 @@ all/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 pt_lp_CJPG/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 mlp_pt_CJPG/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
 mlp_pt_BRCAD-5/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text
+mlp_pt_eurlex-contracts/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

mlp_pt_eurlex-contracts/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:079321370df060be30ac14b6b50b8e8f454f169230507e645a4bbb4373e6b7e1
+size 271855616