Update duckdb index files

.gitattributes

@@ -70,3 +70,4 @@ twi/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 wolof/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 zulu/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 yoruba/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+egyptian_arabic/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

egyptian_arabic/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9e865dd8e62161c99beac70e30521b140147bc27b1ebfc2745db217c3ef2ce85
+size 1832923136