Update duckdb index files

.gitattributes

@@ -545,3 +545,4 @@ default/opendata/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/money.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/opendata.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/outdoors.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/opensource.meta/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/opensource.meta/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e2c635d0e3a71229c14db1a52685aeb756b9302e41c5be946950e57875ee671e
+size 3420160