Migrate discord provider to common.compat (#57114)

Author: bhavaniravi

providers/discord/src/airflow/providers/discord/operators/discord_webhook.py

@@ -25,11 +25,7 @@
 from airflow.providers.http.operators.http import HttpOperator
 
 if TYPE_CHECKING:
-    try:
-        from airflow.sdk.definitions.context import Context
-    except ImportError:
-        # TODO: Remove once provider drops support for Airflow 2
-        from airflow.utils.context import Context
+    from airflow.providers.common.compat.sdk import Context
 
 
 class DiscordWebhookOperator(HttpOperator):