Bump System.Net.Http from 4.3.3 to 4.3.4 in /Ductus.FluentDocker

Bumps System.Net.Http from 4.3.3 to 4.3.4.

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

Author: dependabot[bot]

Ductus.FluentDocker/Ductus.FluentDocker.csproj

@@ -70,6 +70,6 @@
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net461'">
-      <PackageReference Include="System.Net.Http" Version="4.3.3" />
+      <PackageReference Include="System.Net.Http" Version="4.3.4" />
   </ItemGroup>
 </Project>