🥕[Bug]: Update `start` to fail to launch when 2 roles with the same name are present.

[JerryNixon]

What happened?

This should be illegal.

{
  "$schema": "https://github.com/Azure/data-api-builder/releases/download/v1.3.19/dab.draft.schema.json",
  "data-source": {
    "database-type": "mssql"
    "options": {
      "set-session-context": false
    }
  },
  "runtime": {
    "rest": {
      "enabled": true,
      "path": "/api",
      "request-body-strict": true
    },
    "graphql": {
      "enabled": true,
      "path": "/graphql",
      "allow-introspection": true
    },
    "host": {
      "cors": {
        "origins": [],
        "allow-credentials": false
      },
      "authentication": {
        "provider": "StaticWebApps"
      },
      "mode": "development"
    }
  },
  "entities": {
    "User": {
      "source": {
        "object": "dbo.User",
        "type": "table"
      },
      "permissions": [
        {
          "role": "anonymous",
          "actions": [
            {
              "action": "*"
            }
          ]
        },
        {
          "role": "jerry",
          "actions": [
            {
              "action": "*"
            }
          ]
        },
        {
          "role": "jerry",
          "actions": [
            {
              "action": "*"
            }
          ]
        }
      ]
    }
  }
}

Version

1.4

What database are you using?

Azure SQL

What hosting model are you using?

No response

Which API approach are you accessing DAB through?

No response

Relevant log output

Code of Conduct

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