Bump Microsoft.CodeAnalysis.CSharp.Scripting in /tools/DevicesApiTester (#1921)

Bumps [Microsoft.CodeAnalysis.CSharp.Scripting](https://github.com/dotnet/roslyn) from 4.2.0 to 4.3.0.
- [Release notes](https://github.com/dotnet/roslyn/releases)
- [Changelog](https://github.com/dotnet/roslyn/blob/main/docs/Breaking%20API%20Changes.md)
- [Commits](https://github.com/dotnet/roslyn/compare/v4.2.0...Visual-Studio-2019-Version-16.0-Preview-4.3)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.CSharp.Scripting
  dependency-type: direct:production
  update-type: version-update:semver-minor
...
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tools/DevicesApiTester/DeviceApiTester.csproj

@@ -16,7 +16,7 @@
 
   <ItemGroup>
     <PackageReference Include="CommandLineParser" Version="2.8.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.2.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Scripting" Version="4.3.0" />
     <ProjectReference Include="$(MainLibraryPath)System.Device.Gpio.csproj" />
   </ItemGroup>