Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 ELTE-DH--PWKP_cleaned/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+ELTE-DH--PWKP_cleaned/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

ELTE-DH--PWKP_cleaned/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2c30db3fe665bd16ae630e462f1fd391ebb968275952f5553f2c93a3a9d4d5af
+size 2109440