Add CI Benchmarks for Browser environments

[maschad]

#3084 seeks to introduce benchmarks on CI for local nodes in a Node.js environment. These are intended to be run per PR workflow and currently take ~ 12 mins.

We would like to support running these in the browser on CI but that would require extra setup which could take the workflow in excess of ~25 mins. I don't think this would be appropriate to be run per PR or even in a release process, but could be useful post-release (the downside of that is if we introduce a regression in the browser it would be caught after the release)

I do think though that there is a low probability one could introduce a performance regression that is vastly more significant in the browser than in node, but still possible.

[arboleya]

Okay, 25+ minutes seems like a no-go. It's too much. Why does it take so long?

[maschad]

I elaborated a bit more here but TLDR If we can essentially cache the SDK builds + pretest, as well as the chrome setup ubuntu builds, we can take each benchmark time down to roughly 6 mins which would be 12 mins total.

[maschad]

Something to note as well CodSpeedHQ/action#107