nuget: Bump Microsoft.NET.Test.Sdk from 18.0.1 to 18.3.0#13

dependabot[bot] wants to merge 1 commit intomasterRocketModFix/UnturnedRedistUpdateTool:masterfrom

dependabot/nuget/tests/UnturnedRedistUpdateTool.Tests/Microsoft.NET.Test.Sdk-18.3.0RocketModFix/UnturnedRedistUpdateTool:dependabot/nuget/tests/UnturnedRedistUpdateTool.Tests/Microsoft.NET.Test.Sdk-18.3.0Copy head branch name to clipboard