Update duckdb index files

.gitattributes

@@ -79,3 +79,4 @@ Italian[[:space:]](IT)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -te
 Multilingual[[:space:]](MULTI)/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Multilingual[[:space:]](MULTI)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Portuguese[[:space:]](PT)/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Portuguese[[:space:]](PT)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

Portuguese (PT)/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:163f267f3cb68d58b3e66cb9ce77e793c46c0c6421c1b7506a7e6a7c9d2cd4b9
+size 1060864