Bump Markdig from 1.1.1 to 1.1.2

---
updated-dependencies:
- dependency-name: Markdig
  dependency-version: 1.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Spectra.Core/Spectra.Core.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="CsvHelper" Version="33.1.0" />
-    <PackageReference Include="Markdig" Version="1.1.1" />
+    <PackageReference Include="Markdig" Version="1.1.2" />
     <PackageReference Include="Microsoft.Data.Sqlite" Version="10.0.5" />
     <PackageReference Include="YamlDotNet" Version="16.3.0" />
   </ItemGroup>