Merge pull request #94 from IoTSharp/dependabot/nuget/MQTTnet.AspNetCore-3.0.12

Bump MQTTnet.AspNetCore from 3.0.12-rc1 to 3.0.12

IoTSharp/IoTSharp.csproj

@@ -56,7 +56,7 @@
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.10.8" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="3.1.4" />
     <PackageReference Include="MQTTnet" Version="3.0.12" />
-    <PackageReference Include="MQTTnet.AspNetCore" Version="3.0.12-rc1" />
+    <PackageReference Include="MQTTnet.AspNetCore" Version="3.0.12" />
     <PackageReference Include="MQTTnet.Extensions.Rpc" Version="3.0.12" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="3.1.4" />
     <PackageReference Include="NSwag.AspNetCore" Version="13.7.0" />