Update duckdb index files

.gitattributes

@@ -153,3 +153,4 @@ pa-IN/invalidated/index.duckdb filter=lfs diff=lfs merge=lfs -text
 rm-sursilv/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pt/invalidated/index.duckdb filter=lfs diff=lfs merge=lfs -text
 rm-sursilv/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+rm-sursilv/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

rm-sursilv/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2b5c8220291e42de7c1a6ca5467080a62cc71f4ef4eecf9f651a682182d561a2
+size 51392512