Fix: get event loop instead of create

We used to create a new event loop in each sync instance,
which is silly and can error.

Author: Epse

src/obelisk/sync/consumer.py

@@ -29,7 +29,7 @@ def __init__(self, client: str, secret: str,
                  retry_strategy: RetryStrategy = NoRetryStrategy(),
                  kind: ObeliskKind = ObeliskKind.CLASSIC):
         self.async_consumer = AsyncConsumer(client, secret, retry_strategy, kind)
-        self.loop = asyncio.new_event_loop()
+        self.loop = asyncio.get_event_loop()
 
     def single_chunk(self, datasets: List[str], metrics: List[str] | None = None,
                      fields: dict | None = None,

src/obelisk/sync/producer.py

@@ -24,7 +24,7 @@ def __init__(self, client: str, secret: str,
                  retry_strategy: RetryStrategy = NoRetryStrategy(),
                  kind: ObeliskKind = ObeliskKind.CLASSIC):
         self.async_producer = AsyncProducer(client, secret, retry_strategy, kind)
-        self.loop = asyncio.new_event_loop()
+        self.loop = asyncio.get_event_loop()
 
     def send(self, dataset: str, data: List[dict],
              precision: TimestampPrecision = TimestampPrecision.MILLISECONDS,