Bump NUnit3TestAdapter from 4.2.1 to 4.3.0 (#541)

Author: Dor-bl

test/integration/Appium.Net.Integration.Tests.csproj

@@ -12,7 +12,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.3.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Appium.Net\Appium.Net.csproj" />