Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 SIGMitch--KDroid/imagefolder-train.parquet filter=lfs diff=lfs merge=lfs -text
 SIGMitch--KDroid/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:464242bbddf644abcbe7f2305494627669ddb7f473f6dff003792d77c262aa7b
+size 3682304