Bump the dependencies group with 3 updates (#281)

Author: dependabot[bot]

WinQuickLook.Core.Tests/WinQuickLook.Core.Tests.csproj

@@ -18,8 +18,8 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="xunit" Version="2.9.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.0.1">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>

WinQuickLook.Core/WinQuickLook.Core.csproj

@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="AvalonEdit" Version="6.3.0.90" />
     <PackageReference Include="Cylinder.WPF" Version="1.0.0-preview.2" />
-    <PackageReference Include="Markdig" Version="0.39.1" />
+    <PackageReference Include="Markdig" Version="0.40.0" />
     <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2903.40" />
   </ItemGroup>