Bump Xamarin.UITest from 3.2.8 to 3.2.9 (#128)

Author: dependabot[bot]

sample/HackerNews.UITests/HackerNews.UITests.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="Xamarin.UITest" Version="3.2.8" />
+    <PackageReference Include="Xamarin.UITest" Version="3.2.9" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <ItemGroup>