[BUG] Document missing audit endpoints and specify deprecation details

[jamgregory]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

#39 added details of the bulk security advisories endpoint, but there are at least two more endpoints (/-/npm/v1/security/advisories and /-/npm/v1/security/advisories/quick) that are currently undocumented and appear to have been subject to unannounced brownouts in recent days:

• yarn audit failing due to 410 error yarnpkg/yarn#9234
• pnpm audit fails with 410: npm registry has retired legacy audit endpoints pnpm/pnpm#11265
• PnpmAuditAnalyzer stopped working, because npmjs API returns a 410 error now dependency-check/DependencyCheck#8421

Expected Behavior

At the very least, those two endpoints should be listed in the API documentation as they are being used by various tools within the ecosystem.

Preferably, any details about brownouts or deprecations of these endpoints should also be noted in the API documentation or announced in other public forums.

Steps To Reproduce

No response

Environment

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