Get price tiers for sessions

curl --request GET \
  --url https://api.letsway.com/v2/experiences/{experienceId}/sessions/price-tiers

{
  "items": [
    {
      "id": "pricing-123",
      "type": "session",
      "priceTiers": [
        {
          "id": "tier-123",
          "name": "VIP",
          "price": 100,
          "maxQuantity": 5
        }
      ],
      "startDateTime": "2024-03-15T14:30:00Z",
      "sessionDuration": 120
    }
  ]
}