Bump MudBlazor from 9.2.0 to 9.4.0

---
updated-dependencies:
- dependency-name: MudBlazor
  dependency-version: 9.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/MudBlazor.Markdown/MudBlazor.Markdown.csproj

@@ -22,7 +22,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Markdig" Version="1.1.3" />
-		<PackageReference Include="MudBlazor" Version="9.2.0" />
+		<PackageReference Include="MudBlazor" Version="9.4.0" />
 	</ItemGroup>
 
 	<ItemGroup>