Add Examples to CI

At this steps, assuming that apply is successful for the examples defined, add these examples to the CI.

Add examples to CI

Add examples to standalone-scenarios.json. An example for the consumption-budget is:

{
  "config_files": [
    "consumption_budget/100-consumption-budget-rg",
    "consumption_budget/101-consumption-budget-subscription",
    "consumption_budget/102-consumption-budget-rg-alerts",
    "consumption_budget/103-consumption-budget-subscription-alerts",
  ]
}