Update duckdb index files

.gitattributes

@@ -63,3 +63,4 @@ mlp_pt_eurlex-caselaw/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 acordaos_tcu/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 datastf/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 parlamento-pt/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+mlp_pt_legal-mc4/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

mlp_pt_legal-mc4/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fd9be7528382ce69f2f6b8e5c30c865c83cd676b5056ffdaf305023dcb9e6c6d
+size 6219640832