.NET 9.0 tests hang in Codespaces

[nulltoken]

Describe the bug

See https://github.com/NCronJob-Dev/NCronJob/pull/124#issuecomment-2453120185 and follow up discussion

Repro'd against https://github.com/NCronJob-Dev/NCronJob/commit/abf6f28dc58e055580f188b6a9bce15d0ac26fac

[nulltoken]

Relevant:

xunit.runner.json

{
    "$schema": "https://xunit.net/schema/v3.0-alpha-1/xunit.runner.schema.json",
    "diagnosticMessages": true,
    "longRunningTestSeconds": 15
}

See https://xunit.net/docs/configuration-files#file