feat: update Lua tree generation script & patch file for Kong 3.1.0-0 Luarock

[omegabytes]

No description provided.

[omegabytes]

Need to add support for/replace ngx.base64 (probably alias it like we did with ngx.re.match)

[omegabytes]

This relies on ffi and will need to be removed/replaced (see https://github.com/Kong/goks/blob/main/patches/lua-tree.patch#L68)

[omegabytes]

Need to add support for/replace ngx.base64 (probably alias it like we did with ngx.re.match)

I'm not so sure about this after looking at how base64 us being used across the project. Why is decode_base64 imported directly but decode_base64url imports ngx.base64 first? If I update the imports to match then things work correctly. One example here

  local decode_base64    = ngx.decode_base64
  local decode_base64url = require "ngx.base64".decode_base64url

To resolve, we could fix the import in kong, or I can patch it in goks. I wrote some throwaway logic that aliases decode_base64 and decode_base64url methods using the go encoding lib here.

[omegabytes]

I moved this to draft since there's some patching or package overriding required in order to push this over. I don't have a complete list yet, the two I've noticed are the sha256 methods and patching/replacing of ngx.base64.decode_base64* methods.

[mikefero]

@omegabytes With 3.2.0 on the horizon I am going to close this PR in favor of grabbing the newest updates after that release occurs.