Bump Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore from 1.3.1 to 1.3.2 in /src/testing/userload-generator/AzureFunctions/GlobalOrchestrator

Bump Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore from 1.3.1 to 1.3.2 in /src/testing/userload-generator/AzureFunctions/GlobalOrchestrator #304