Update duckdb index files

.gitattributes

@@ -378,3 +378,4 @@ gas/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 boo/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 bluespec/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 gentoo-ebuild/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+gettext-catalog/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

gettext-catalog/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:141d7b4b06e15006d72df3139369d1da50f281c9c569252c7cf1018a3193b013
+size 1060864