Update duckdb index files

.gitattributes

@@ -136,3 +136,4 @@ default/serverfault.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/softwarerecs.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/unix.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/wordpress.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/webapps.stackexchange.com/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/webapps.stackexchange.com/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:78c707363e0095551aec082d85719d4ebad4d8efa3194fb0896f8a94df390512
+size 15216640