Bump Markdig from 0.45.0 to 1.1.1

---
updated-dependencies:
- dependency-name: Markdig
  dependency-version: 1.1.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/CheckCloudSupport.csproj

@@ -14,7 +14,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Markdig" Version="0.45.0" />
+    <PackageReference Include="Markdig" Version="1.1.1" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="10.0.3" />
     <PackageReference Include="Microsoft.OpenApi" Version="3.3.1" />
     <PackageReference Include="Microsoft.OpenApi.OData" Version="3.1.0" />