flatbuffers: update bindings, add verifier

nostrdb/bindings/c/meta_json_parser.h

@@ -3,8 +3,8 @@
 
 /* Generated by flatcc 0.6.1 FlatBuffers schema compiler for C by dvide.com */
 
-#include "flatcc/flatcc_json_parser.h"
-#include "flatcc/flatcc_prologue.h"
+#include "flatcc_json_parser.h"
+#include "flatcc_prologue.h"
 
 /*
  * Parses the default root table or struct of the schema and constructs a FlatBuffer.
@@ -112,5 +112,5 @@ static int meta_parse_json(flatcc_builder_t *B, flatcc_json_parser_t *ctx,
     return 0;
 }
 
-#include "flatcc/flatcc_epilogue.h"
+#include "flatcc_epilogue.h"
 #endif /* META_JSON_PARSER_H */