Update duckdb index files

.gitattributes

@@ -255,3 +255,4 @@ de-faq-page/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ja-all-question/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ja-faq-page/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 vi-faq-question/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+de-cqa-domain/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

de-cqa-domain/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:696298a90f3e0f89e414eb08e5dce400fc138126408d3ce41d09de499f5a07cb
+size 6216495104