Add System.Net.Http again to solve CVE warning (#1354)

Author: StefH

src/WireMock.Net.Abstractions/WireMock.Net.Abstractions.csproj

@@ -38,6 +38,9 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <!-- CVE-2018-8292 / https://github.com/advisories/GHSA-7jgj-8wvc-jh57 -->
+        <PackageReference Include="System.Net.Http " Version="4.3.4" />
+
         <!-- See also https://mstack.nl/blog/20210801-source-generators -->
         <PackageReference Include="FluentBuilder" Version="0.10.0">
             <PrivateAssets>all</PrivateAssets>

src/WireMock.Net.Minimal/WireMock.Net.Minimal.csproj

@@ -125,15 +125,7 @@
         <PackageReference Include="Scriban.Signed" Version="5.5.0" />
     </ItemGroup>
 
-    <!--<ItemGroup Condition="'$(TargetFramework)' != 'netstandard1.3' and '$(TargetFramework)' != 'net451' and '$(TargetFramework)' != 'net452' and '$(TargetFramework)' != 'net46' and '$(TargetFramework)' != 'net461'">
-        <PackageReference Include="ProtoBufJsonConverter" Version="0.10.0" />
-    </ItemGroup>-->
-
     <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' ">
-        <!--<PackageReference Include="Nullable" Version="1.3.1">
-            <PrivateAssets>all</PrivateAssets>
-            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-        </PackageReference>-->
         <PackageReference Include="System.ComponentModel" Version="4.3.0" />
     </ItemGroup>