Update duckdb index files

.gitattributes

@@ -155,3 +155,4 @@ t2_es_filtered_lines-fix.jsonl filter=lfs diff=lfs merge=lfs -text
 t2_fr_filtered_lines-fix.jsonl filter=lfs diff=lfs merge=lfs -text
 t2_hi_hdtb-Pred-HIT.jsonl filter=lfs diff=lfs merge=lfs -text
 GEM--surface_realisation_st_2020/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+GEM--surface_realisation_st_2020/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

GEM--surface_realisation_st_2020/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:41226e31c220698a1fa5661485cc0d9885a77a56bea8b16e78f0abe9d7fdbc7f
+size 128200704