Update duckdb index files

.gitattributes

@@ -217,3 +217,4 @@ default/machinist/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/carpet_installer/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/file_clerk/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/mental_health_counselor/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/machinery_mechanic/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/machinery_mechanic/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a08842a6e55fa5f5850c01753b9b79d9d91647370c26f73481729175d6651dfe
+size 5779456