Update duckdb index files

.gitattributes

@@ -67,3 +67,4 @@ cs_legislation/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bg_contracts/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 da_contracts/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_wikipedia/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+de_caselaw/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

de_caselaw/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8d2053d1cd58bb3bec2ea8fe7defb5c937007f22ee7231c595b4ed57f9e7746e
+size 8138752