refactor kontor-api to use SQLAlchemy 2.0 features for mapping fields

(cherry picked from commit e57abdbef7e13e3880738cd639225df5db0c37be)

kontor-api/src/schema/media/actor.py

@@ -1,18 +1,12 @@
-from datetime import datetime
-
-from src.db.models.media import MediaActor
+from typing import Optional
 from pydantic import BaseModel
 
 
 class MediaActorResponse(BaseModel):
     id: str
-    name: str | None
+    name: Optional[str]
     url: str
 
-class Actor(BaseModel):
-    name: str | None
+class MediaActorModel(BaseModel):
+    name: Optional[str]
     url: str
-
-def get_actor_details(media_actor: MediaActor) -> MediaActorResponse:
-    reponse: MediaActorResponse = MediaActorResponse(id=media_actor.id, name=str(media_actor.name), url=str(media_actor.url))
-    return reponse