Merge branch 'main' into fix-field-exclude-parameter-typing

diff --cc sqlmodel/main.py
index 1de03ce902291f13b9e20d9de4023e9ccb80c8a5,9a1a676775a7cde7b36a9b475016fa142dd957d2..9d8efcabda64b9b240426fe984b9dd0ba119dc69
--- 1/sqlmodel/main.py
--- 2/sqlmodel/main.py
+++ b/sqlmodel/main.py
@@@ -3,8 -3,6 +3,7 @@@ from __future__ import annotation
  import builtins
  import ipaddress
  import uuid
- import weakref
 +import warnings
  from collections.abc import Callable, Mapping, Sequence, Set
  from dataclasses import dataclass
  from datetime import date, datetime, time, timedelta