Update duckdb index files

.gitattributes

@@ -155,3 +155,4 @@ default/stackapps.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/sharepoint.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/stats.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/sitecore.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/webmasters.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/webmasters.stackexchange.com/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:80caa139a498d2a8a3c518ea62c72f934ea0e9364b4b8ffb274a9596f5e3d180
+size 21245952