Update duckdb index files

.gitattributes

@@ -85,3 +85,4 @@ Spanish[[:space:]](ES)/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Spanish[[:space:]](ES)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Spanish[[:space:]](ES)/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Swedish[[:space:]](SV)/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Swedish[[:space:]](SV)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

Swedish (SV)/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a458693f3fcdadccf567b99d9149d7311126d41f2ca344946d371b5abfc9e257
+size 1060864