Update duckdb index files

.gitattributes

@@ -69,3 +69,4 @@ kin/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 kin/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 swa/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 swa/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+swa/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

swa/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5a9bb505b97198155fc9be46d95ab8f683ff3b09b566030cd3788b30291f6db0
+size 1060864