Update duckdb index files

.gitattributes

@@ -79,3 +79,4 @@ DaniFrame--SST2Perturbed/sst2_perturbed_reverseneg/index.duckdb filter=lfs diff=
 DaniFrame--SST2Perturbed/sst2_perturbed_swapnum/index.duckdb filter=lfs diff=lfs merge=lfs -text
 DaniFrame--SST2Perturbed/sst2_perturbed_twitter/index.duckdb filter=lfs diff=lfs merge=lfs -text
 DaniFrame--SST2Perturbed/sst2_perturbed_verbtense/index.duckdb filter=lfs diff=lfs merge=lfs -text
+DaniFrame--SST2Perturbed/sst2_perturbed_wordcase/index.duckdb filter=lfs diff=lfs merge=lfs -text

DaniFrame--SST2Perturbed/sst2_perturbed_wordcase/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fab99087643a90e45263c3b90c402198df07073480e182d570373578848d139d
+size 1323008