Test Failure: Read_NonGeneric_NoPublicConstructor_Throws

## Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1395596
Build error leg or test failing: System.Text.Json.Serialization.Tests.CollectionTestsDynamic_AsyncStreamWithSmallBuffer.Read_NonGeneric_NoPublicConstructor_Throws
Pull request: https://github.com/dotnet/runtime/pull/127248

## Error Message

Fill the error message using [step by step known issues guidance](https://github.com/dotnet/arcade/blob/main/Documentation/Projects/Build%20Analysis/KnownIssueJsonStepByStep.md).

```json
{
"ErrorMessage": "",
"ErrorPattern": "CollectionTestsDynamic_AsyncStreamWithSmallBuffer\\.Read_NonGeneric_NoPublicConstructor_Throws.*\\[FAIL\\]",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
```

### Known issue validation
**Build: :mag_right:** https://dev.azure.com/dnceng-public/public/_build/results?buildId=1395596
**Error message validated:** `[CollectionTestsDynamic_AsyncStreamWithSmallBuffer\.Read_NonGeneric_NoPublicConstructor_Throws.*\[FAIL\]`]
**Result validation:** :white_check_mark: Known issue matched with the provided build.
**Validation performed at:** 4/24/2026 9:34:43 PM UTC

### Report

|Build|Definition|Test|Pull Request|
|---|---|---|---|
|[2960038](https://dev.azure.com/dnceng/internal/_build/results?buildId=2960038)|dotnet-runtime|[System.Text.Json.Serialization.Tests.CollectionTestsDynamic_AsyncStreamWithSmallBuffer.Read_NonGeneric_NoPublicConstructor_Throws](https://dev.azure.com/dnceng//internal/_build/results?buildId=2960038&view=ms.vss-test-web.build-test-results-tab&runId=56818505&resultId=223994)||
|[1395596](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1395596)|dotnet/runtime|[System.Text.Json.Serialization.Tests.CollectionTestsDynamic_AsyncStreamWithSmallBuffer.Read_NonGeneric_NoPublicConstructor_Throws](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1395596&view=ms.vss-test-web.build-test-results-tab&runId=38935690&resultId=220322)|dotnet/runtime#127248|
#### Summary
|24-Hour Hit Count|7-Day Hit Count|1-Month Count|
|---|---|---|
|0|2|2|