Update duckdb index files

CM--codexglue_code2text_php/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8c52df1c8c0765063e3d3b547394abd98a65d359f86a01fa187331765d946fce
-size 954478592
+oid sha256:3fd05660865acd35ed38578d37360c186f965e234f4c9cee7a39b7d0bbfee84f
+size 953692160