Update duckdb index files

.gitattributes

@@ -163,3 +163,4 @@ college_chemistry/val/index.duckdb filter=lfs diff=lfs merge=lfs -text
 computer_architecture/val/index.duckdb filter=lfs diff=lfs merge=lfs -text
 computer_architecture/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 computer_architecture/dev/index.duckdb filter=lfs diff=lfs merge=lfs -text
+fire_engineer/val/index.duckdb filter=lfs diff=lfs merge=lfs -text

fire_engineer/val/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f1c906b1c71fd8f30746cf48017354feddc216c4bd31d63281a178a29a902dfa
+size 1060864