Update Program.cs
Update Program.cs

Added a change to force TLS to 1.2 to resolve an issue with older .NET frameworks defaulting to 1.0 (not supported)
HPInc/printos-box-api-samples,HPInc/printos-box-api-samples,HPInc/printos-box-api-samples,HPInc/printos-box-api-samples,HPInc/printos-box-api-samples,HPInc/printos-box-api-samples