Update duckdb index files

.gitattributes

@@ -114,3 +114,4 @@ spdenisov--udtrees/da_ddt_ud_train/index.duckdb filter=lfs diff=lfs merge=lfs -t
 spdenisov--udtrees/fa_perdt_ud_train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 spdenisov--udtrees/fa_seraji_ud_train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/ru_syntagrus_ud_train_a/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/en_ewt_ud_train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/en_ewt_ud_train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cf236ec319d57088636de369dd11205079cc4c0a595d9fe232f2d7263f875278
+size 31469568