Quarantine Http3RequestTests.POST_Bidirectional_LargeData_Cancellation_Error

## Failing Test(s)
- `Interop.FunctionalTests.Http3.Http3RequestTests.POST_Bidirectional_LargeData_Cancellation_Error`

## Failure Frequency
Failed 3 times over the past 30 days.

## Error Message
No detailed error message was captured in the injected failure data for this test's most recent failures (only aggregate failure count and Helix job/work item identifiers were available); the assembly-level metadata indicates the failures occurred in Helix work item `batch_1--net11.0` (job `0f855002-d38a-4a8e-a191-3a9817fb71da`).

## Stacktrace

```text
No stack trace was captured in the injected failure data for this test.
```

## Logs

No Helix console log content could be retrieved for this run (log download is not permitted for Part 1 analysis; only the injected aggregate failure data was available).

## Build
https://dev.azure.com/dnceng-public/public/_build/results?buildId=1569345

> Generated by [Daily Test Quarantine Management](https://github.com/dotnet/aspnetcore/actions/runs/33077421295) · auto · 367.4 AIC · ⌖ 10.4 AIC · ⊞ 4.3K · [◷](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 Interop.FunctionalTests.Http3.Http3RequestTests.POST_Bidirectional_LargeData_Cancellation_Error and inspect the linked Azure build for available failure details. The issue provides no stack trace or logs, so investigate how the test fails under net11.0 and establish a reproducible cause; completion requires addressing the cancellation failure and confirming the test is reliable.

Written by the indexing model from the issue text.