Update duckdb index files

.gitattributes

@@ -78,3 +78,4 @@ mbpp-cpp/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 mbpp-cpp-keep/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 mbpp-cs/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 mbpp-cs-keep/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+mbpp-d/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

mbpp-d/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a74a989219fb2560480f2c581587642cab010f770868e0c1b83feac8441412ca
+size 1060864