Update duckdb index files

.gitattributes

@@ -92,3 +92,4 @@ reg_cat_Airlines_DepDelay_1M/train/index.duckdb filter=lfs diff=lfs merge=lfs -t
 reg_cat_Allstate_Claims_Severity/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 reg_cat_Bike_Sharing_Demand/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 reg_cat_Brazilian_houses/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+reg_cat_Mercedes_Benz_Greener_Manufacturing/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

reg_cat_Mercedes_Benz_Greener_Manufacturing/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2ef4dd80922d88dd857406fded7c3f0477fa81e4498770ac8faf2c7f1d4c0ea9
+size 2109440