Bump Microsoft.IdentityModel.Validators from 8.6.1 to 8.15.0#1007

dependabot[bot] wants to merge 1 commit intomainmicrosoftgraph/msgraph-sdk-dotnet-core:mainfrom

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