Missing docs: `max_vulnerabilities` in `GET os_versions/:id` and `GET /os_versions`

[getvictor]

UPDATE: @noahtalerman: PR to the docs is here: #33533

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Fleet version:
4.75.0

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💥  Actual behavior

https://www.youtube.com/watch?v=VvxjngBavUA

🛠️ To fix

• @noahtalerman: PR is here: API design: #33758 (OS vulnerabilities bug) #33533
  • We might be missing the new max_vulnerabilities for GET os_versions/:id

🧑‍💻  Steps to reproduce

1. Create an environment where the same Ubuntu version has many kernels.
2. Go to Software -> OS -> Ubuntu

🕯️ More info (optional)

N/A

[getvictor]

@sharon-fdm This bug requires design work. Moving it to ready. cc: @rachaelshaw

[noahtalerman]

os_versions/{id} performance

@AndreyKizimenko for the OS version with the most CVEs, how long does it take to load the OS version details page in numa's environment?

If it's under 5 seconds I think we can close this bug.

cc @getvictor