[Bug?]: `npmMinimalAgeGate` will not work on GithubPackages

[mrginglymus]

Self-service

• I'd be willing to implement a fix

Describe the bug

https://github.blog/changelog/2021-03-05-packages-time-has-been-dropped-from-npm-package-metadata-responses/

GitHub appears to be missing the metadata required for yarn's age-gate checking. This means any attempt to install a package from a NPM repository hosted by a GitHub instance will fail with "all versions are quarantined", which is technically correct given the information available, but unhelpful.

To reproduce

Install any package from a github npm registry.

Environment

System:
    OS: Windows 11 10.0.26200
    CPU: (22) x64 Intel(R) Core(TM) Ultra 7 165H
  Binaries:
    Node: 24.16.0 - C:\Users\collinsw\AppData\Local\Temp\xfs-c2e61610\node.CMD
    Yarn: 4.17.1 - C:\Users\collinsw\AppData\Local\Temp\xfs-c2e61610\yarn.CMD
    npm: 11.13.0 - C:\dev\nodejs\npm.CMD

Additional context

GitHub Enterprise Server 3.16.18