Bump System.IO.Abstractions.TestingHelpers from 13.2.10 to 16.0.8 in /src/Dash/test/Dash.Tests#339

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dependabot/nuget/src/Dash/test/Dash.Tests/System.IO.Abstractions.TestingHelpers-16.0.8dotnet-dash/dash:dependabot/nuget/src/Dash/test/Dash.Tests/System.IO.Abstractions.TestingHelpers-16.0.8Copy head branch name to clipboard