Update duckdb index files

.gitattributes

@@ -74,3 +74,4 @@ civil_servant/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
 chinese_language_and_literature/val/index.duckdb filter=lfs diff=lfs merge=lfs -text
 civil_servant/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 civil_servant/val/index.duckdb filter=lfs diff=lfs merge=lfs -text
+clinical_medicine/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text

clinical_medicine/dev/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3afb5d3f77988e0116e119372f3d3b4b497c642db5662b5e14362c59186894c8
+size 1060864