Update duckdb index files

.gitattributes

@@ -26,3 +26,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zstandard filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 KTH--martin/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+KTH--martin/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

KTH--martin/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6d91b65e93599c8eb78d576af27fac99ed5cff6579b8eb7905cadf1fc29568c5
+size 1323008