Revert "chore: Prevent Ruff from moving imports under TYPE_CHECKING"

This reverts commit 3e148dc.

Author: pawamoy

src/griffe/__init__.py

@@ -5,6 +5,8 @@
 to generate API documentation or find breaking changes in your API.
 """
 
+from __future__ import annotations
+
 from griffe.agents.nodes import ObjectNode
 from griffe.dataclasses import Attribute, Class, Docstring, Function, Module, Object
 from griffe.diff import find_breaking_changes
@@ -14,7 +16,7 @@
 from griffe.loader import load
 from griffe.logger import get_logger
 
-__all__ = [
+__all__: list[str] = [
     "Attribute",
     "Class",
     "Docstring",