Get functionality uptime chart

curl --request GET \
  --url https://api.rootly.com/v1/functionalities/{id}/uptime_chart \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "2025-09-08": 100,
    "2025-09-09": 100,
    "2025-09-10": 100,
    "2025-09-11": 100,
    "2025-09-12": 100,
    "2025-09-13": 100,
    "2025-09-14": 100,
    "2025-09-15": 100,
    "2025-09-16": 100,
    "2025-09-17": 100,
    "2025-09-18": 100,
    "2025-09-19": 100,
    "2025-09-20": 50,
    "2025-09-21": 0,
    "2025-09-22": 100,
    "2025-09-23": 100
  }
}