Documentation: fix broken WordPress VIP links in sniff docblocks

[rodrigoprimo]

Description

Update old https://vip.wordpress.com/documentation URLs to new https://docs.wpvip.com URLs in multiple sniff docblocks. The old links are redirecting to a generic page that doesn't provide any useful information about the related sniff.

I was not able to find the corresponding new link for EnqueuedResourcesSniff, so I opted to remove the old link. I'm not familiar with WordPress VIP docs so I might have missed the new location.

It seems it is not the first time that WordPress VIP changed those URLs without configuring proper redirects (see #1499).

Suggested changelog entry

N/A

[GaryJones]

cc @yolih

[jrfnl]

✅ Verified old vs new links

@GaryJones Considering you are probably most familiar with the VIP documentation, would you be able to suggest an alternative link for the EnqueuedResources docblock link ?

Also: it might be a good idea to flag internally within A8C that these type of documentation reorganizations leave a lot of broken links around the web.... ?

[jrfnl]

@GaryJones 😁 We were clearly posting at the same time ;-)

[jrfnl]

@GaryJones Hmm.. just noticed that the /cc-ed name is not actually a person, but a GH organisation. Could you double-check that you copied in the correct person ?

[GaryJones]

Comment fixed, so tagging @yolih now.

[yolih]

@rodrigoprimo Thank you so much for taking the time to locate suitable URL replacements for these sniffs!
The vip.wordpress.com domain has not hosted VIP's documentation in over 6 years, so these updates are well overdue.

My suggestion for a corresponding link for EnqueuedResourcesSniff:
https://docs.wpvip.com/php_codesniffer/phpcs-report/#h-warnings-at-severity-level-4-and-under

[rodrigoprimo]

Thanks for the suggestion, @yolih! I don't think this is a good replacement as this link is about how VIPCS categorizes PHPCS errors/warnings by severity and not about the EnqueuedResources sniff. I believe we can leave this sniff without a link.