format log events in json

[ayazabbas]

this now creates logs with the following format:

{
  "text": "2024-05-09 17:06:54.951 | INFO     | pyth_observer.event:send:97 - dv (5ZLaVaVJdvdqGmvnS4jYgJ7k54Kdev7f1q5LDytjwqJ6) price is too far from aggregate price.\n",
  "record": {
    "elapsed": { "repr": "0:01:02.179121", "seconds": 62.179121 },
    "exception": null,
    "extra": {
      "msg": "dv (5ZLaVaVJdvdqGmvnS4jYgJ7k54Kdev7f1q5LDytjwqJ6) price is too far from aggregate price.",
      "type": "PublisherCheck",
      "publisher": "dv (5ZLaVaVJdvdqGmvnS4jYgJ7k54Kdev7f1q5LDytjwqJ6)",
      "symbol": "Crypto.ENJ/USD",
      "publisher_price": "0.31184499 ± 0.00585499",
      "aggregate_price": "0.29085248 ± 0.00217723",
      "deviation": 5.204535302569867
    },
    "file": {
      "name": "event.py",
      "path": "/Users/ayazabbas/dev/pyth/pyth-observer/pyth_observer/event.py"
    },
    "function": "send",
    "level": { "icon": "ℹ️", "name": "INFO", "no": 20 },
    "line": 97,
    "message": "dv (5ZLaVaVJdvdqGmvnS4jYgJ7k54Kdev7f1q5LDytjwqJ6) price is too far from aggregate price.",
    "module": "event",
    "name": "pyth_observer.event",
    "process": { "id": 60108, "name": "MainProcess" },
    "thread": { "id": 8252029632, "name": "MainThread" },
    "time": {
      "repr": "2024-05-09 17:06:54.951338+01:00",
      "timestamp": 1715270814.951338
    }
  }
}