Bump Moq from 4.14.7 to 4.15.1

Bumps [Moq](https://github.com/moq/moq4) from 4.14.7 to 4.15.1.
- [Release notes](https://github.com/moq/moq4/releases)
- [Changelog](https://github.com/moq/moq4/blob/master/CHANGELOG.md)
- [Commits](https://github.com/moq/moq4/commits)

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

tests/Jellyfin.Api.Tests/Jellyfin.Api.Tests.csproj

@@ -22,7 +22,7 @@
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="coverlet.collector" Version="1.3.0" />
-    <PackageReference Include="Moq" Version="4.14.7" />
+    <PackageReference Include="Moq" Version="4.15.1" />
   </ItemGroup>
 
   <!-- Code Analyzers -->

tests/Jellyfin.Server.Implementations.Tests/Jellyfin.Server.Implementations.Tests.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="AutoFixture" Version="4.14.0" />
     <PackageReference Include="AutoFixture.AutoMoq" Version="4.14.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.0" />
-    <PackageReference Include="Moq" Version="4.14.7" />
+    <PackageReference Include="Moq" Version="4.15.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="coverlet.collector" Version="1.3.0" />