Update duckdb index files

.gitattributes

@@ -160,3 +160,4 @@ desktop/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 diff/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cucumber/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dns-zone/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+digital-command-language/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

digital-command-language/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:332248b4c33e3a5dff45e2386eb4130479478d631417143e0c6455dc933b368d
+size 1060864