Job Monitor: non-PR builds trigger 500s in Helix when querying jobs #17371

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