Certificate error hangs Lighthouse

[paulirish]

repro:

lighthouse https://ilkayuyarkaba.av.tr/tag/istifaya-zorlanan-iscinin-kidem-tazminati

The site fails to load and shows the NET::ERR_CERT_SYMANTEC_LEGACY error, but Lighthouse doesn't recognize this. After the 45s timeout it just hangs permanently on "Retrieving devtoolsLog and network records".

We should detect the certificate failure early and fail with a new pageLoadError state. Maybe something like CERT_ERR_DOCUMENT _REQUEST ?

I think there's something on the protocol which represents this situation.. Something in the Security domain? Will require some investigation. https://badssl.com/ might be useful though they dont have a symantec cert situation. Just other ones.

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Issue broken out from #6272