[backlog] Parallizing the playwright test on github action runner

[hcho112]

Description

Currently we are using low-tier github action runner to handle playwright e2e tests. It actually takes fairly long time to execute and it may cause bottleneck if need to get something tested urgently and deploy.

Based on research, we actually have other github runner instance available that are higher spec (more cores). We may leverage them by co-ordinating other teams to make sure we are allow to use them for our PR and update our github action config to utilise them.

This will allow us to execute test(s) much faster by running them in parallel and ultimately make better devx.