ci: lighthouse

[gptkrsh]

Successor of #927

This is not the final copy of the action probably, this is just to get started, we can improve it as we use :D

@eddiejaoude you need to do this before this PR can be merged: https://github.com/GoogleChrome/lighthouse-ci/blob/main/docs/getting-started.md#github-app-method-recommended

[eddiejaoude]

Can we use an existing Action like this one? https://github.com/marketplace/actions/lighthouse-audit

[gptkrsh]

It seems to not be maintained well @eddiejaoude

__  Summary: :hammer_and_wrench: This code needs a fix  |  Tags: Not maintainable

[EmmaDawsonDev]

I'm going to close this for now, hopefully we can find an action that does something similar instead.