Update duckdb index files

.gitattributes

@@ -72,3 +72,4 @@ film/challenge_test_abstractivity_1/index.duckdb filter=lfs diff=lfs merge=lfs -
 film/challenge_test_abstractivity_2/index.duckdb filter=lfs diff=lfs merge=lfs -text
 film/challenge_test_abstractivity_3/index.duckdb filter=lfs diff=lfs merge=lfs -text
 film/challenge_test_abstractivity_5/index.duckdb filter=lfs diff=lfs merge=lfs -text
+film/challenge_test_abstractivity_4/index.duckdb filter=lfs diff=lfs merge=lfs -text

film/challenge_test_abstractivity_4/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ed909a9394fbb20ecd960445647b81f1b40c18f3c8b84898d78ce414d2b9b2af
+size 34877440