Update duckdb index files

.gitattributes

@@ -81,3 +81,4 @@ default/ceo/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/executive_assistant/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/aerospace_engineer/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/cook/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/civil_engineer/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/civil_engineer/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e26fa71159d55eb4499d10b102184031207981370cd7a4f47df2bf609e85bb75
+size 4993024