Update duckdb index files

.gitattributes

@@ -192,3 +192,4 @@ default/financial_manager/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/veterinarian/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/wholesale_buyer/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/air_conditioning_installer/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 sha256:284594fcde718213b9df2344352e4fbeaa73464ad76eaafea3f323e4903a9b11
+size 6303744