Job Monitor: non-PR builds trigger 500s in Helix when querying jobs

[premun]

Possibly something about the source property that we send fails there

info: 🔁 Checking for failed Helix jobs to resubmit the failed work items...
##[error]Helix Job Monitor terminated with an unhandled exception.
      Microsoft.DotNet.Helix.Client.RestApiException`1[Microsoft.DotNet.Helix.Client.Models.ApiError]: The response contained an invalid status code 500 Internal Server Error
      
      Body: {"Message":"An error occured.","ActivityId":"134f4a2a7afac75f9f23fcf1cb3c6109"}
         at Microsoft.DotNet.Helix.JobMonitor.HelixService.RetryAsync[T](Func`1 action, CancellationToken cancellationToken) in /_/src/arcade/src/Microsoft.DotNet.Helix/JobMonitor/Services/HelixService.cs:line 431
         at Microsoft.DotNet.Helix.JobMonitor.HelixService.GetJobsForBuildAsync(String source, String buildId, CancellationToken cancellationToken) in /_/src/arcade/src/Microsoft.DotNet.Helix/JobMonitor/Services/HelixService.cs:line 56
         at Microsoft.DotNet.Helix.JobMonitor.JobMonitorRunner.ExecuteRetryPassAsync(CancellationToken cancellationToken) in /_/src/arcade/src/Microsoft.DotNet.Helix/JobMonitor/JobMonitorRunner.cs:line 133
         at Microsoft.DotNet.Helix.JobMonitor.JobMonitorRunner.RunAsync(CancellationToken cancellationToken) in /_/src/arcade/src/Microsoft.DotNet.Helix/JobMonitor/JobMonitorRunner.cs:line 89
         at Microsoft.DotNet.Helix.JobMonitor.Program.Main(String[] args) in /_/src/arcade/src/Microsoft.DotNet.Helix/JobMonitor/Program.cs:line 86

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1559220&view=logs&j=078edc60-2a90-5618-e72d-426a045b11f0&t=0ca3371c-1de8-59d8-daef-35ea5811e911&s=6884a131-87da-5381-61f3-d7acc3b91d76

[premun]

The problem is that we're trying to get all jobs belonging to a PR branch and then filter by properties.
We do this by calling /api/jobs?Source=[SOURCE]&count=100000 which for the rolling build was ci/public/dotnet/runtime/refs/heads/main which returns thousands of jobs and the API fails with 500.

Instead, we should use the /api/jobs?properties[BuildId]=1559220 API but that also returns 500 because the SQL query is not formatted properly.

• Fix for Helix is here: https://dev.azure.com/dnceng/internal/_git/dotnet-helix-service/pullrequest/64214
• I will try to regenerate the Helix client to also include the new filter so that we can start calling a different API