Update dependency KubernetesClient to v16 (#600)

Author: renovate[bot]

Directory.Packages.props

@@ -11,7 +11,7 @@
     <PackageVersion Include="Grpc.AspNetCore.Server.Reflection" Version="2.67.0" />
     <PackageVersion Include="Grpc.Core.Api" Version="2.67.0" />
     <PackageVersion Include="Grpc.Tools" Version="2.69.0" />
-    <PackageVersion Include="KubernetesClient" Version="15.0.1" />
+    <PackageVersion Include="KubernetesClient" Version="16.0.1" />
     <PackageVersion Include="MartinCostello.Logging.XUnit.v3" Version="0.5.1" />
     <PackageVersion Include="Microsoft.AspNetCore.Authentication.Certificate" Version="9.0.1" />
     <PackageVersion Include="Microsoft.Azure.DurableTask.AzureStorage" Version="2.0.1" />