Update duckdb index files

.gitattributes

@@ -1069,3 +1069,4 @@ ar_ja/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_ko/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ar_pt/sampled_test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cs_en/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+cs_de/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

cs_de/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6a9ce290a89b852ac906fda379fc6582f7dab9f384b1c947ddcea091035f4498
+size 393490432