chore(deps): update nuget finbuckle.multitenant to v6.12.0

Author: renovate[bot]

src/Finbuckle.MultiTenant.MongoFramework/Finbuckle.MultiTenant.MongoFramework.csproj

@@ -18,17 +18,17 @@
   <Choose>
     <When Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
       <ItemGroup>
-        <PackageReference Include="Finbuckle.MultiTenant" Version="6.11.1" />
+        <PackageReference Include="Finbuckle.MultiTenant" Version="6.12.0" />
       </ItemGroup>
     </When>
     <When Condition=" '$(TargetFramework)' == 'netstandard2.1' ">
       <ItemGroup>
-        <PackageReference Include="Finbuckle.MultiTenant" Version="6.11.1" />
+        <PackageReference Include="Finbuckle.MultiTenant" Version="6.12.0" />
       </ItemGroup>
     </When>
     <Otherwise>
       <ItemGroup>
-        <PackageReference Include="Finbuckle.MultiTenant" Version="6.11.1" />
+        <PackageReference Include="Finbuckle.MultiTenant" Version="6.12.0" />
       </ItemGroup>
     </Otherwise>
   </Choose>