Update duckdb index files

.gitattributes

@@ -204,3 +204,4 @@ anatomy/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
 anatomy/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 anatomy/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 high_school_european_history/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
+high_school_european_history/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

high_school_european_history/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bba628552ea27effdb0ec6f94e212a73f5a0b800a873267cf806814d7eec944f
+size 1323008