Bump DocFx.App from 2.73.0 to 2.73.2 (#564)

Bumps [DocFx.App](https://github.com/dotnet/docfx) from 2.73.0 to 2.73.2.
- [Release notes](https://github.com/dotnet/docfx/releases)
- [Changelog](https://github.com/dotnet/docfx/blob/main/RELEASENOTE.md)
- [Commits](dotnet/docfx@v2.73.0...v2.73.2)

---
updated-dependencies:
- dependency-name: DocFx.App
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Docs/SuperLinq.Docs/SuperLinq.Docs.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="DocFx.App" Version="2.73.0" />
+		<PackageReference Include="DocFx.App" Version="2.73.2" />
 	</ItemGroup>
 
 </Project>