Update duckdb index files

.gitattributes

@@ -13,3 +13,4 @@ task3-options/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task4-phone-address/TESTOOV/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task4-phone-address/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task4-phone-address/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+task4-phone-address/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

task4-phone-address/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6d1ca7294cc56c6cdd9682f37256666a47ce61dd91878d6ce2bb872e0f57e1b5
+size 1060864