delete file race condition

[johnml1135]

	
{"log":"\u001B[41m\u001B[30mfail\u001B[39m\u001B[22m\u001B[49m: Microsoft.AspNetCore.Server.Kestrel[13]
      Connection id \"0HMT43IG3F4VK\", Request id \"0HMT43IG3F4VK:00000010\": An unhandled exception was thrown by the application.
      SIL.DataAccess.DuplicateKeyException: The inserted/updated entity has the same key as an existing entity.
         at SIL.DataAccess.MongoRepository`1.TryCatchDuplicate[TR](Func`1 func) in /app/src/SIL.DataAccess/MongoRepository.cs:line 242
         at SIL.DataAccess.MongoRepository`1.InsertAsync(T entity, CancellationToken cancellationToken) in /app/src/SIL.DataAccess/MongoRepository.cs:line 72
         at Serval.DataFiles.Services.DataFileService.DeleteAsync(String id, CancellationToken cancellationToken) in /app/src/Serval.DataFiles/Services/DataFileService.cs:line 123
         at Serval.DataFiles.Controllers.DataFilesController.DeleteAsync(String id, CancellationToken cancellationToken) in /app/src/Serval.DataFiles/Controllers/DataFilesController.cs:line 211
         at lambda_method164(Closure , Object )
         at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ExceptionContextSealed context)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
         at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
         at Microsoft.AspNetCore.Authorization.Policy.AuthorizationMiddlewareResultHandler.HandleAsync(RequestDelegate next, HttpContext context, AuthorizationPolicy policy, PolicyAuthorizationResult authorizeResult)
         at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
         at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
         at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.HttpProtocol.ProcessRequests[TContext](IHttpApplication`1 application)
","stream":"stdout","time":"2023-08-31T08:40:07.663424153Z","type":"fail","source":"Microsoft.AspNetCore.Server.Kestrel"}

There is a race condition that will cause an error if you try to delete the file twice at "nearly" the same time.