Bump Microsoft.CodeAnalysis.CSharp from 4.0.1 to 5.0.0#2290

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dependabot/nuget/Ix.NET/Source/System.Linq.Async.SourceGenerator/Microsoft.CodeAnalysis.CSharp-5.0.0dotnet/reactive:dependabot/nuget/Ix.NET/Source/System.Linq.Async.SourceGenerator/Microsoft.CodeAnalysis.CSharp-5.0.0Copy head branch name to clipboard