Update duckdb index files

.gitattributes

@@ -960,3 +960,4 @@ multilingual/partial-validation/0007.parquet filter=lfs diff=lfs merge=lfs -text
 multilingual/partial-validation/0008.parquet filter=lfs diff=lfs merge=lfs -text
 multilingual/partial-validation/0009.parquet filter=lfs diff=lfs merge=lfs -text
 bg-Latn/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+co/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

co/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8f151aab55966fc929a82cec98fd7bebb7d6227c2951d4fea520adc2bb490a6d
+size 2109440