Quarantine Http2TimeoutTests.HEADERS_ReceivedWithoutAllCONTINUATIONs_WithinRequestHeadersTimeout_AbortsConnection failing intermittently

## Failing Test(s)

`Microsoft.AspNetCore.Server.Kestrel.Core.Tests.Http2TimeoutTests.HEADERS_ReceivedWithoutAllCONTINUATIONs_WithinRequestHeadersTimeout_AbortsConnection`

## Error Message

```text
Moq.MockException: Expected invocation on the mock once, but was 0 times:
h => h.OnTimeout(TimeoutReason.RequestHeaders)

Performed invocations:
Mock(IKestrelTrace:1) (h):
No invocations performed.
```

## Stacktrace

```text
Moq.MockException: Expected invocation on the mock once, but was 0 times:
h => h.OnTimeout(TimeoutReason.RequestHeaders)

Performed invocations:
Mock(IKestrelTrace:1) (h):
No invocations performed.
at Moq.Mock.Verify(Expression`1 expression, Times times, String failMessage)
at Microsoft.AspNetCore.Server.Kestrel.Core.Tests.Http2TimeoutTests.HEADERS_ReceivedWithoutAllCONTINUATIONs_WithinRequestHeadersTimeout_AbortsConnection()
```

## Logs

```text
See build logs for detailed output. The test verifies that a timeout is triggered when CONTINUATION frames are not received within the request headers timeout period, but the mock verification fails intermittently.
```

## Build

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1340247

> Generated by [Daily Test Quarantine Management](https://github.com/dotnet/aspnetcore/actions/runs/23270202784) · [◷](https://github.com/search?q=repo%3Adotnet%2Faspnetcore+is%3Aissue+%22gh-aw-workflow-call-id%3A+dotnet%2Faspnetcore%2Ftest-quarantine%22&type=issues)

Search the repository for Microsoft.AspNetCore.Server.Kestrel.Core.Tests.Http2TimeoutTests.HEADERS_ReceivedWithoutAllCONTINUATIONs_WithinRequestHeadersTimeout_AbortsConnection and inspect the related test-quarantine conventions. Review the linked build logs to confirm the intermittent failure, then quarantine the test and verify that the quarantine is recorded for this test.

Written by the indexing model from the issue text.