Bump KubernetesClient from 14.0.9 to 15.0.1 (#208)

Bumps [KubernetesClient](https://github.com/kubernetes-client/csharp) from 14.0.9 to 15.0.1.
- [Release notes](https://github.com/kubernetes-client/csharp/releases)
- [Commits](https://github.com/kubernetes-client/csharp/commits/v15.0.1)

---
updated-dependencies:
- dependency-name: KubernetesClient
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Tingle.AzureCleaner/Tingle.AzureCleaner.csproj

@@ -52,7 +52,7 @@
     <PackageReference Include="Azure.ResourceManager.MySql" Version="1.1.0" />
     <PackageReference Include="Azure.ResourceManager.PostgreSql" Version="1.1.3" />
     <PackageReference Include="Azure.ResourceManager.Sql" Version="1.2.1" />
-    <PackageReference Include="KubernetesClient" Version="14.0.9" />
+    <PackageReference Include="KubernetesClient" Version="15.0.1" />
     <PackageReference Include="Macross.Json.Extensions" Version="3.0.0" />
     <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.22.0" />
     <PackageReference Include="Microsoft.TeamFoundationServer.Client" Version="19.225.1" />