Bump Westwind.AspNetCore.Markdown and Markdig

Bumps [Westwind.AspNetCore.Markdown](https://github.com/RickStrahl/Westwind.AspNetCore.Markdown) and [Markdig](https://github.com/xoofx/markdig). These dependencies needed to be updated together.

Updates `Westwind.AspNetCore.Markdown` from 3.12.0 to 3.17.0
- [Release notes](https://github.com/RickStrahl/Westwind.AspNetCore.Markdown/releases)
- [Changelog](https://github.com/RickStrahl/Westwind.AspNetCore.Markdown/blob/master/Changelog.md)
- [Commits](https://github.com/RickStrahl/Westwind.AspNetCore.Markdown/commits)

Updates `Markdig` from 0.33.0 to 0.37.0
- [Release notes](https://github.com/xoofx/markdig/releases)
- [Changelog](https://github.com/xoofx/markdig/blob/master/changelog.md)
- [Commits](xoofx/markdig@0.33.0...0.37.0)

---
updated-dependencies:
- dependency-name: Westwind.AspNetCore.Markdown
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Markdig
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Directory.Packages.props

@@ -36,7 +36,7 @@
     <PackageVersion Include="Flurl" Version="3.0.7" />
     <PackageVersion Include="Flurl.Http" Version="3.2.4" />
     <PackageVersion Include="GoogleReCaptcha.V3" Version="1.3.1" />
-    <PackageVersion Include="Markdig" Version="0.33.0" />
+    <PackageVersion Include="Markdig" Version="0.37.0" />
     <PackageVersion Include="MediaInfo.Wrapper.Core" Version="21.9.3" />
     <PackageVersion Include="MediatR" Version="12.1.1" />
     <PackageVersion Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.21.0" />
@@ -79,7 +79,7 @@
     <PackageVersion Include="Swashbuckle.AspNetCore.Annotations" Version="6.5.0" />
     <PackageVersion Include="System.ComponentModel.Annotations" Version="5.0.0" />
     <PackageVersion Include="TagHelperSamples.Authorization" Version="3.0.56" />
-    <PackageVersion Include="Westwind.AspNetCore.Markdown" Version="3.12.0" />
+    <PackageVersion Include="Westwind.AspNetCore.Markdown" Version="3.17.0" />
     <PackageVersion Include="WindowsAzure.Storage" Version="9.3.3" />
     <PackageVersion Include="xunit" Version="2.6.6" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.3" />