Bump Microsoft.Owin from 3.0.1 to 4.0.0 in /hol-04-orders/completed/pcsdk-order#33

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dependabot/nuget/hol-04-orders/completed/pcsdk-order/Microsoft.Owin-4.0.0PartnerCenterSamples/training-course:dependabot/nuget/hol-04-orders/completed/pcsdk-order/Microsoft.Owin-4.0.0Copy head branch name to clipboard