Investigate why goth proxy is not working on CI on new runners(ubuntu-22.04)

[lucekdudek]

When running goth tests on ubuntu-22.04 runner nginx proxy returns 504 when trying to send any request to yagna api (both requestor and providers). This behavior is only reproducible on CI. Setting use_proxy configuration to False is a workaround.

• Confirm it works with the same setup on old runner
  • use dap-runner goth test setup
  • move dapp-store yaml files to dapp-runner repo so gitmodules are not needed (gitmodules don't work on old runner)
  • change workflow to use old runner ubuntu-18.04
• Verify mitmproxy can proxy traffic without nginx
  • mitmproxy is started in python thread from process running goth
  • call requestor and provider yagna apis(ports configuration) using mitmproxy (localhost:9000) goth source code