♻ Changed format of the class to match the Pydantic v3 conventions

app/models/HTTPError.py

@@ -1,10 +1,10 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 
 
 class HTTPError(BaseModel):
-    detail: str
+    model_config = ConfigDict(
-
-    class Config:
         json_schema_extra = {
             "example": {"detail": "HTTPException raised."},
         }
+    )
+    detail: str