Quarantine HubConnectionTests.RefreshingAuth* (authentication refresh functional tests)

## Failing Test(s)

- `Microsoft.AspNetCore.SignalR.Client.FunctionalTests.HubConnectionTests.RefreshingAuthAddingClaimAllowsAuthorizedMethod`
- `Microsoft.AspNetCore.SignalR.Client.FunctionalTests.HubConnectionTests.RefreshingAuthRemovingClaimBlocksAuthorizedMethod`

## Failure Frequency

Each test failed 2 times over the past 30 days.

## Error Message

Helix logs have expired for the failing builds. The tests are SignalR functional integration tests that authenticate via HTTP tokens and test authorization behavior when the token's claims are modified mid-connection.

## Build

- `RefreshingAuthAddingClaimAllowsAuthorizedMethod`: Most recent failing build https://dev.azure.com/dnceng-public/public/_build/results?buildId=1522288
- `RefreshingAuthRemovingClaimBlocksAuthorizedMethod`: Most recent failing build https://dev.azure.com/dnceng-public/public/_build/results?buildId=1517711

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> Generated by [Daily Test Quarantine Management](https://github.com/dotnet/aspnetcore/actions/runs/30154654518) · 558.6 AIC · ⌖ 6.78 AIC · ⊞ 1.8K · [◷](https://github.com/search?q=repo%3Adotnet%2Faspnetcore+is%3Aissue+%22gh-aw-workflow-call-id%3A+dotnet%2Faspnetcore%2Ftest-quarantine%22&type=issues)

Start with the two named HubConnectionTests.RefreshingAuth* functional integration tests and review the linked Helix builds, noting that their logs have expired. Reproduce the authentication-refresh scenarios involving modified claims and determine why they fail intermittently. Done means the tests reliably pass and no longer need quarantine.

Written by the indexing model from the issue text.