Bump System.Net.Http from 4.3.3 to 4.3.4 in /ClientLibraryPatAppSample

Bumps System.Net.Http from 4.3.3 to 4.3.4.

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ClientLibraryPatAppSample/ClientLibraryPatAppSample.csproj

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.4"  Condition="'$(TargetFramework)' == 'netcoreapp2.0'" />
     <PackageReference Include="Microsoft.TeamFoundationServer.ExtendedClient" Version="16.139.0-preview" />
-    <PackageReference Include="System.Net.Http" Version="4.3.3" Condition="'$(TargetFramework)' == 'netcoreapp2.0'" />
+    <PackageReference Include="System.Net.Http" Version="4.3.4" Condition="'$(TargetFramework)' == 'netcoreapp2.0'" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="5.2.1" Condition="'$(TargetFramework)' == 'netcoreapp2.0'" />
     <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
   </ItemGroup>