Run E2E tests against version at API port's /webui

[lidel]

Needs #2984 to land first

Thanks to #2706 we have E2E tests that check if js-ipfs is compatible with ipfs-webui's master branch, but we don't run those tests against the webui version aliased at /webui on API port.

Over time, support for older version at /webui may break, while the master of webui continues to work with js-ipfs master, which means we miss some regressions.

A fix here would be to run ipfs-webui E2E test suite against version at /webui at well:

• extract CID from packages/ipfs/src/http/api/routes/webui.js
• prefetch it and cache so CI is not slowed down
• make it a separate task in CI with distinct name (eg. ipfs-webui(/webui))
• no need to run it twice

[achingbrain]

no need to run it twice

Would we not want to run it on FF & Chrome?

[lidel]

Right now E2E run only against Chromium. Running against Firefox should be possible now that puppeteer added support ipfs/ipfs-webui#1164 (comment), but its not implemented yet.

What I meant by "running twice" was that E2E is running once against "release" version and then the second time against "PR" version to detect regressions. When we add E2E against /webui that needs to run only "once".

[SgtPooki]

@BigLep I believe this one is irrelevant for helia because we're detaching js-ipfs from webui

[BigLep]

Agreed. We can close this given webui is detached from js-ipfs and Helia.