Update type hint for attachments

Co-authored-by: Isak Ohlsson Ångnell <[email protected]>

Author: ahdamin

cg/clients/freshdesk/models.py

@@ -7,7 +7,7 @@
 class TicketCreate(BaseModel):
     """Freshdesk ticket."""
 
-    attachments: list[Union[str, bytes]] = Field(default_factory=list)
+    attachments: list[str | bytes] = Field(default_factory=list)
     email: EmailStr
     email_config_id: int | None = None
     description: str