Bump Moq from 4.14.0 to 4.15.2

Bumps [Moq](https://github.com/moq/moq4) from 4.14.0 to 4.15.2.
- [Release notes](https://github.com/moq/moq4/releases)
- [Changelog](https://github.com/moq/moq4/blob/master/CHANGELOG.md)
- [Commits](devlooped/moq@v4.14.0...v4.15.2)

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

Author: dependabot[bot]

src/VisualStudio.Tests/VisualStudio.Tests.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
-    <PackageReference Include="Moq" Version="4.14.0" />
+    <PackageReference Include="Moq" Version="4.15.2" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
   </ItemGroup>