Update duckdb index files

.gitattributes

@@ -91,3 +91,4 @@ eu_ejadministrari/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_ejlaguntza/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_ejlaguntzaile/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_ejteknikari/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+eu_opebilbaoeu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

eu_opebilbaoeu/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b66361897dba7455db32b9a06b21deaf3a3a795df391e33059d309a66342300d
+size 1323008