sync with rtd 15.4.1 (#305)

Author: mmckerns

docs/requirements.txt

@@ -1,40 +1,40 @@
 # Packages required to build docs
 # dependencies pinned as:
-# https://github.com/readthedocs/readthedocs.org/blob/fb39b974889b35ff39f0282407f19475b9bb9bb2/requirements/docs.txt
+# https://github.com/readthedocs/readthedocs.org/blob/9d7adbd477ee1cd4808fd5e8d9d6932171cfa038/requirements/docs.txt
 
 alabaster==1.0.0
-anyio==4.9.0
+anyio==4.11.0
 babel==2.17.0
-certifi==2025.4.26
-charset-normalizer==3.4.2
-click==8.2.1
+certifi==2025.10.5
+charset-normalizer==3.4.3
+click==8.3.0
 colorama==0.4.6
 docutils==0.21.2
 h11==0.16.0
 idna==3.10
 imagesize==1.4.1
 jinja2==3.1.6
 markdown-it-py==3.0.0
-markupsafe==3.0.2
-mdit-py-plugins==0.4.2
+markupsafe==3.0.3
+mdit-py-plugins==0.5.0
 mdurl==0.1.2
 myst-parser==4.0.1
 packaging==25.0
-pygments==2.19.1
-pyyaml==6.0.2
+pygments==2.19.2
+pyyaml==6.0.3
 requests==2.32.4
 roman-numerals-py==3.1.0
 six==1.17.0
 sniffio==1.3.1
 snowballstemmer==3.0.1
 sphinx==8.2.3
-sphinx-autobuild==2024.10.3
+sphinx-autobuild==2025.8.25
 sphinx-copybutton==0.5.2
 sphinx-design==0.6.1
-sphinx-intl==2.3.1
+sphinx-intl==2.3.2
 sphinx-multiproject==1.0.0
 sphinx-notfound-page==1.1.0
-sphinx-prompt==1.9.0
+sphinx-prompt==1.10.1
 sphinx-rtd-theme==3.0.2
 sphinx-tabs==3.4.7
 sphinxcontrib-applehelp==2.0.0
@@ -45,10 +45,10 @@ sphinxcontrib-jquery==4.1
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==2.0.0
-sphinxext-opengraph==0.10.0
-starlette==0.47.2
-typing-extensions==4.13.2
+sphinxext-opengraph==0.13.0
+starlette==0.49.1
+typing-extensions==4.15.0
 urllib3==2.5.0
-uvicorn==0.34.2
-watchfiles==1.0.5
+uvicorn==0.37.0
+watchfiles==1.1.0
 websockets==15.0.1