Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 eminecg--petitions-ds-v2/parquet-validation.parquet filter=lfs diff=lfs merge=lfs -text
 eminecg--petitions-ds-v2/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 eminecg--petitions-ds-v2/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+eminecg--petitions-ds-v2/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

eminecg--petitions-ds-v2/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:df814ce82208e8d62b8ef545bc3c1885f6045abf02b0e9a7db49c0f7bcdb01d8
+size 6565888