Enable populate_by_name to handle aliases

I'm not sure if this is a work-around for a bug, or a needed option in Pydantic.

See:
- BeanieODM/beanie#369
- https://docs.pydantic.dev/latest/api/config/#pydantic.config.ConfigDict.populate_by_name

src/cyhy_db/models/place_doc.py

@@ -11,7 +11,7 @@
 class PlaceDoc(Document):
     """The place document model."""
 
-    model_config = ConfigDict(extra="forbid")
+    model_config = ConfigDict(extra="forbid", populate_by_name=True)
 
     class_: str = Field(alias="class")  # 'class' is a reserved keyword in Python
     country_name: str

src/cyhy_db/models/ticket_doc.py

@@ -30,7 +30,9 @@
 class EventDelta(BaseModel):
     """The event delta model."""
 
-    from_: Optional[bool | float | int | str] = Field(..., serialization_alias="from")
+    model_config = ConfigDict(populate_by_name=True)
+
+    from_: Optional[bool | float | int | str] = Field(..., alias="from")
     key: str = Field(...)
     to: Optional[bool | float | int | str] = Field(...)