Whether the apisix-go-plugin-runner can implement setCookie and then call the upstream service

[rampagecong]

Issue description

The current situation is that the http.setcookie is called directly in apisix and returns the result, and the upstream service cannot be called.

Environment

• APISIX Go Plugin Runner's version:v0.2.0
• APISIX version:2.12.0
• Go version:go version go1.16.13 linux/amd64
• OS (cmd: uname -a):Linux localdev 3.10.0-1160.49.1.el7.x86_64 ci: enable #1 SMP Tue Nov 30 15:51:32 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[spacewander]

Let's track it in https://github.com/apache/apisix-go-plugin-runner/issues/62 too.