Update duckdb index files

.gitattributes

@@ -96,3 +96,4 @@ eu_opeehuadmineu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_opeehuauxeu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_opeehubiblioeu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 eu_opeehuderechoeu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+eu_opeehueconomicaseu/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

eu_opeehueconomicaseu/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:575e03ddf8883fde2cb8a84b05625624c22c4494344e25c45d7ba19031c17029
+size 1323008