Upgrade NuGet packages

Author: npiontko-fp

src/KafkaFlow.UnitTests/KafkaFlow.UnitTests.csproj

@@ -25,8 +25,8 @@
         <PackageReference Include="Moq" Version="4.16.1" />
         <PackageReference Include="MSTest.TestAdapter" Version="2.2.5" />
         <PackageReference Include="MSTest.TestFramework" Version="2.2.5" />
-        <PackageReference Include="Confluent.SchemaRegistry" Version="1.9.3" />
-        <PackageReference Include="Confluent.SchemaRegistry.Serdes.Protobuf" Version="1.9.3" />
+        <PackageReference Include="Confluent.SchemaRegistry" Version="2.1.1" />
+        <PackageReference Include="Confluent.SchemaRegistry.Serdes.Protobuf" Version="2.1.1" />
     </ItemGroup>
 
     <ItemGroup>