Update duckdb index files

.gitattributes

@@ -113,3 +113,4 @@ default/datascience.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs
 default/meta.askubuntu.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/computergraphics.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/meta.serverfault.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/meta.stackoverflow.com/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/meta.stackoverflow.com/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c9a163061ccfae499d5ee33f242c7af8ea5a188a347203e43d128f6b71df3a59
+size 16527360