Current Behavior

Recently, I upgraded apisix with the latest code, and found that there was an error in converting http to https. When redirecting, I always bring a port 80. It should be caused by this change：https://github.com/apache/apisix/pull/6686/files#r867816800

Maybe set $var_x_forwarded_port $server_port; in ngx_tpl.lua conflicts with local ret_port = tonumber(ctx.var["var_x_forwarded_port"]) in redirect.lua

Expected Behavior

port changed from 80 to 443

Error Logs

No response

Steps to Reproduce

add redirect and set http_to_https to true

Environment

• APISIX version (run apisix version): master
• Operating system (run uname -a):
• OpenResty / Nginx version (run openresty -V or nginx -V):
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):