Regenerate requirements from clean venv

Doc/requirements-oldest-sphinx.txt

@@ -16,19 +16,14 @@ alabaster==0.7.16
 babel==2.16.0
 certifi==2024.12.14
 charset-normalizer==3.4.0
-docstring-to-markdown==0.15
 docutils==0.20.1
 idna==3.10
 imagesize==1.4.1
-jedi==0.19.1
 Jinja2==3.1.5
 MarkupSafe==3.0.2
 packaging==24.2
-parso==0.8.4
-pluggy==1.5.0
 Pygments==2.18.0
 requests==2.32.3
-setuptools==75.1.1.post0
 snowballstemmer==2.2.0
 Sphinx==7.2.6
 sphinxcontrib-applehelp==2.0.0
@@ -37,5 +32,4 @@ sphinxcontrib-htmlhelp==2.1.0
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==2.0.0
-ujson==5.10.0
 urllib3==2.3.0