chore(deps): update dependency mudblazor to 8.12.0

Author: renovate[bot]

Directory.Packages.props

@@ -15,7 +15,7 @@
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="9.0.6" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="9.0.6" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageVersion Include="MudBlazor" Version="8.7.0" />
+    <PackageVersion Include="MudBlazor" Version="8.12.0" />
     <PackageVersion Include="MvvmBlazor" Version="6.0.6" />
     <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
     <PackageVersion Include="OneOf" Version="3.0.271" />