Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 realnewslike/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+realnewslike/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

realnewslike/train/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:51e3272d43baa4e8a9533aea702f650d8b94667096d09643e461c8a210d9f302
+size 9252384768