Update NuGet Packages - Major Updates

Author: renovate[bot]

src/Markdown.ColorCode/Markdown.ColorCode.csproj

@@ -48,7 +48,7 @@
   <ItemGroup>
     <PackageReference Include="ColorCode.Core" Version="2.0.15" />
     <PackageReference Include="ColorCode.HTML" Version="2.0.15" />
-    <PackageReference Include="Markdig" Version="0.45.0" />
+    <PackageReference Include="Markdig" Version="1.3.1" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

tests/Markdown.ColorCode.UnitTests/Markdown.ColorCode.UnitTests.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4">
+    <PackageReference Include="coverlet.collector" Version="10.0.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>