Update duckdb index files

.gitattributes

@@ -289,3 +289,4 @@ all_contracts/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 all_other/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 de_all/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 en_all/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+en_caselaw/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

en_caselaw/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b6e1a15f3a86c8d4b37ac331edf1e28136022f49168901d36cbf7dffd7c79c6c
+size 5086130176