Bump Microsoft.IdentityModel.Protocols.OpenIdConnect from 8.6.1 to 8.15.0#998

ramsessanchez merged 2 commits intomainmicrosoftgraph/msgraph-sdk-dotnet-core:mainfrom

dependabot/nuget/src/Microsoft.Graph.Core/Microsoft.IdentityModel.Protocols.OpenIdConnect-8.15.0microsoftgraph/msgraph-sdk-dotnet-core:dependabot/nuget/src/Microsoft.Graph.Core/Microsoft.IdentityModel.Protocols.OpenIdConnect-8.15.0Copy head branch name to clipboard