Bump AutoFixture.Xunit2 from 4.5.0 to 4.8.0 (#241)

Bumps [AutoFixture.Xunit2](https://github.com/AutoFixture/AutoFixture) from 4.5.0 to 4.8.0.
- [Release notes](https://github.com/AutoFixture/AutoFixture/releases)
- [Commits](AutoFixture/AutoFixture@v4.5.0...v4.8.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Test/Test.csproj

@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.8.0" />
     <PackageReference Include="AutoFixture.AutoMoq" Version="4.8.0" />
-    <PackageReference Include="AutoFixture.Xunit2" Version="4.5.0" />
+    <PackageReference Include="AutoFixture.Xunit2" Version="4.8.0" />
     <PackageReference Include="FluentAssertions" Version="5.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.8.0-preview-20180610-02" />
     <PackageReference Include="Moq" Version="4.10.0" />