Explicitly add reference.

tests/ImageSharp.Tests/ImageSharp.Tests.csproj

@@ -9,7 +9,6 @@
     <RootNamespace>SixLabors.ImageSharp.Tests</RootNamespace>
     <AssemblyName>SixLabors.ImageSharp.Tests</AssemblyName>
     <Platforms>AnyCPU;x64;x86</Platforms>
-    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
@@ -23,8 +22,8 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <WarningsAsErrors />
   </PropertyGroup>
-  
-  <ItemGroup>
+    <ItemGroup>
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.1" />
     <PackageReference Include="Magick.NET-Q16-AnyCPU" Version="7.5.0" />
     <PackageReference Include="Microsoft.CSharp" Version="4.5.0" />
     <PackageReference Include="System.Drawing.Common" Version="4.5.0" />