Update duckdb index files

.gitattributes

@@ -429,3 +429,4 @@ default/buddhism.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/cardano/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/blender/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/cardano.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/chemistry.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/chemistry.meta/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:953cfe961d8f9f135a8faed41bb7cb5ff643cd011f51e39b18d98fb90d890a8d
+size 13643776