Update duckdb index files

.gitattributes

@@ -78,3 +78,4 @@ Italian[[:space:]](IT)/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Italian[[:space:]](IT)/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 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 (PT)/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:874c3780781b02f6a0cc1bcdee8d140aedd4a1bd10b80ff7d480e2b2a75a0c67
+size 6041600