Migrate NodeImageVersions client to official Azure SDK (#1337)

Co-authored-by: Matthew Christopher <matthchr@users.noreply.github.com>

Author: Copilot

Makefile-az.mk

@@ -477,5 +477,5 @@ az-swagger-generate-clients: az-swagger-generate-clients-raw
 
 az-codegen-nodeimageversions: ## List node image versions (to be used in fake/nodeimageversionsapi.go)
 	az rest --method get \
-		--url "/subscriptions/$(AZURE_SUBSCRIPTION_ID)/providers/Microsoft.ContainerService/locations/$(AZURE_LOCATION)/nodeImageVersions?api-version=2024-04-02-preview" \
-		| jq -r '.values[] | "{\n\tFullName: \"\(.fullName)\",\n\tOS:       \"\(.os)\",\n\tSKU:      \"\(.sku)\",\n\tVersion:  \"\(.version)\",\n},"'
+		--url "/subscriptions/$(AZURE_SUBSCRIPTION_ID)/providers/Microsoft.ContainerService/locations/$(AZURE_LOCATION)/nodeImageVersions?api-version=2025-10-02-preview" \
+		| jq -r '.value[] | "{\n\tFullName: \"\(.fullName)\",\n\tOS:       \"\(.os)\",\n\tSKU:      \"\(.sku)\",\n\tVersion:  \"\(.version)\",\n},"'