Update duckdb index files

.gitattributes

@@ -533,3 +533,4 @@ default/hermeneutics/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/literature/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/interpersonal/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/matheducators.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/mathematica.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/mathematica.meta/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:63ce1c38d2d9881ea5535cc9be478e917d9f525ab25890100f551597f2e101e1
+size 9187328