Add BeautifulSoup dependency for HTML parsing in tests

pyproject.toml

@@ -124,6 +124,7 @@ test = [
     "defusedxml>=0.7.1",  # for secure XML/HTML parsing
     "setuptools>=70.0",  # for Cython compilation
     "typing_extensions>=4.9",  # for typing_extensions.Unpack
+    "beautifulsoup4>=4.12",  # for HTML parsing in tests
 ]
 translations = [
     "babel>=2.13",

tests/test_builders/test_build_changes.py

@@ -3,12 +3,14 @@
 from __future__ import annotations
 
 import re
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING
 
 import pytest
-from bs4 import BeautifulSoup  # type: ignore[import-not-found]
+from bs4 import BeautifulSoup
 
 if TYPE_CHECKING:
+    from typing import Any
+
     from sphinx.testing.util import SphinxTestApp