res:read_body() unable to read chunksize

[zebra-93]

响应头包含不符合规范的头信息，导致chunked的响应体获取失败

HTTP/1.1 200 OK
Content-Type: application/json;charset=UTF-8
Transfer-Encoding: chunked
Connection: close
Date: Wed, 24 Apr 2024 06:32:55 GMT
Vary: Accept-Encoding
Sso-Version: 1.0
Expires: Wed, 24 Apr 2024 06:32:55 GMT
Cache-Control: max-age=0
Access-Control-Allow-Origin: http://xxx.aaa.com
Access-Control-Allow-Methods: GET, POST, OPTIONS
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Location,DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization,Oidc-Temp-Ticket,Sec-Fetch-Dest,Sec-Fetch-Mode,
Sec-Fetch-Site,TE:
Access-Control-Expose-Headers: Location,Set-Cookie,Content-Type,Content-Length,Content-Range,Oidc-Temp-Ticket
Access-Control-Max-Age: 1728000

在执行_chunked_body_reader时，从sock中读取的第一行数据是：Access-Control-Expose-Headers: Location,Set-Cookie,Content-Type,Content-Length,Content-Range,Oidc-Temp-Ticket

在使用reader读取响应体时，报unable to read chunksize 错误

怀疑是在_receive_headers的时候从sock读取响应头到 Sec-Fetch-Site,TE: 行，发生了错误，结束了读取。 在读取响应体时从异常头的下一行开始读取