Bump Moq from 4.7.63 to 4.13.0 in /PreMailer.Net/PreMailer.Net.Tests

Bumps [Moq](https://github.com/moq/moq4) from 4.7.63 to 4.13.0.
- [Release notes](https://github.com/moq/moq4/releases)
- [Changelog](https://github.com/moq/moq4/blob/master/CHANGELOG.md)
- [Commits](devlooped/moq@v4.7.63...v4.13.0)

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

Author: dependabot-preview[bot]

PreMailer.Net/PreMailer.Net.Tests/PreMailer.Net.Tests.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
-    <PackageReference Include="Moq" Version="4.7.63" />
+    <PackageReference Include="Moq" Version="4.13.0" />
     <PackageReference Include="MSTest.TestFramework" Version="1.3.2" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.3.2" />
   </ItemGroup>