Bump Microsoft.CodeAnalysis.Workspaces.MSBuild from 3.7.0 to 4.3.0 in /src/Dash/test/Dash.Tests#421

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dependabot/nuget/src/Dash/test/Dash.Tests/Microsoft.CodeAnalysis.Workspaces.MSBuild-4.3.0dotnet-dash/dash:dependabot/nuget/src/Dash/test/Dash.Tests/Microsoft.CodeAnalysis.Workspaces.MSBuild-4.3.0Copy head branch name to clipboard