Get functionality uptime chart

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

{
  "data": {
    "2025-07-07": 100,
    "2025-07-08": 100,
    "2025-07-09": 100,
    "2025-07-10": 100,
    "2025-07-11": 100,
    "2025-07-12": 100,
    "2025-07-13": 100,
    "2025-07-14": 100,
    "2025-07-15": 100,
    "2025-07-16": 100,
    "2025-07-17": 100,
    "2025-07-18": 100,
    "2025-07-19": 50,
    "2025-07-20": 0,
    "2025-07-21": 100,
    "2025-07-22": 100
  }
}