fix: add missing option to the AKS e2e tests (cloudnative-pg#4451)

Since May 2024 a new option is required to create an AKS cluster:
'--allow-preview true'

Closes cloudnative-pg#4450

Signed-off-by: Jonathan Gonzalez V <jonathan.gonzalez@enterprisedb.com>
Signed-off-by: Niccolò Fei <niccolo.fei@enterprisedb.com>
Co-authored-by: Niccolò Fei <niccolo.fei@enterprisedb.com>
Signed-off-by: Douglass Kirkley <dkirkley@eitccorp.com>

.github/workflows/continuous-delivery.yml

@@ -827,7 +827,7 @@ jobs:
           timeout_minutes: 10
           max_attempts: 3
           command: |
-            az extension add --name aks-preview
+            az extension add --allow-preview true --name aks-preview
             az account set --subscription ${{ secrets.AZURE_SUBSCRIPTION }}
 
             AZURE_STORAGE_ACCOUNT="${{ github.run_number }}${{ env.E2E_SUFFIX }}"
@@ -938,7 +938,7 @@ jobs:
           timeout_minutes: 10
           max_attempts: 3
           command: |
-            az extension add --name aks-preview
+            az extension add --allow-preview true --name aks-preview
             az account set --subscription ${{ secrets.AZURE_SUBSCRIPTION }}
 
             # name of the AKS cluster
@@ -1092,6 +1092,7 @@ jobs:
         name: Clean up
         if: always()
         run: |
+          az extension add --allow-preview true --name monitor-control-service
           az account set --subscription ${{ secrets.AZURE_SUBSCRIPTION }}
           attempt=1
           max_attempts=3