Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Advection_Sols_beta0.1/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Advection_Sols_beta0.4/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

Advection_Sols_beta0.4/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:72946e28b4135c22a64f16e435b1ce65fde07173b4f18a2e0ffcf050c224782c
+size 27799552