When compiling with GCC 14.1.0 (C++23) parser->data is not initialized. Added base class initialization to HTTPParser fixes this.

Author: Wesley Sneijers

include/crow/parser.h

@@ -100,6 +100,7 @@ namespace crow
             return 0;
         }
         HTTPParser(Handler* handler):
+          http_parser(),
           handler_(handler)
         {
             http_parser_init(this);