update ARB VM and vm extensions inside of ARB VM - Kubeconfig can't be reached

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**Bug description**
When updating Azure Local to 10.2503.0.13 MocArb fails with cluster can't find kubernetes kubeconfig

**Repro steps**
Steps to reproduce the behavior:

Open powershell on a Cluster node: Start-SolutionUpdate -Id redmond/Solution10.2503.0.13

**Expected behavior**

Type 'UpdateArbAndExtensions' of Role 'MocArb' raised an exception: [UpgradeArbAndExtensions :arcappliance upgrade] Failed with Error C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\wbin\az.cmd arcappliance upgrade hci --config-file "C:\ClusterStorage\Infrastructure_1\Shares\SU1_Infrastructure_1\MocArb\WorkingDirectory\Appliance\hci-appliance.yaml" --only-show-errors returned a non empty error stream [ERROR: (PreUpgradeHealthValidationFailed) Pre Upgrade validation failed with error: "There was an error reaching to Kubernetes cluster with kubeconfig.

**Environment (please complete the following information):**
- Build 10.2503.0.13
- multi-node
- Production
- Region Westeurope

**Screenshots**


**Correlation ID**
ed24ecbf-ffee-4303-b5e4-0322c11ed3ec

**Additional context**
Update has worked on last 2 updates, but has failed with this build

No repository file, test, or entry point is named. Start by reproducing Start-SolutionUpdate with the provided build and reviewing the UpdateArbAndExtensions error, kubeconfig reachability failure, and correlation ID. Done would require a confirmed resolution for the Kubernetes kubeconfig failure during the Azure Local update.

Scritto dal modello di indicizzazione a partire dal testo della issue.