Update Sphinx dependencies to close #444.

docs/requirements.txt

@@ -1,34 +1,34 @@
 #
-# This file is autogenerated by pip-compile with Python 3.11
+# This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
 #    pip-compile requirements.in
 #
 alabaster==0.7.16
     # via sphinx
-babel==2.14.0
+babel==2.15.0
     # via sphinx
 beautifulsoup4==4.12.3
     # via furo
 certifi==2024.2.2
     # via requests
 charset-normalizer==3.3.2
     # via requests
-docutils==0.20.1
+docutils==0.21.2
     # via sphinx
-furo==2024.1.29
+furo==2024.5.6
     # via -r requirements.in
 idna==3.7
     # via requests
 imagesize==1.4.1
     # via sphinx
-jinja2==3.1.3
+jinja2==3.1.4
     # via sphinx
 markupsafe==2.1.5
     # via jinja2
 packaging==24.0
     # via sphinx
-pygments==2.17.2
+pygments==2.18.0
     # via
     #   furo
     #   sphinx
@@ -38,14 +38,14 @@ snowballstemmer==2.2.0
     # via sphinx
 soupsieve==2.5
     # via beautifulsoup4
-sphinx==7.2.6
+sphinx==7.3.7
     # via
     #   -r requirements.in
     #   furo
     #   sphinx-autodoc-typehints
     #   sphinx-basic-ng
     #   sphinx-copybutton
-sphinx-autodoc-typehints==2.0.0
+sphinx-autodoc-typehints==2.1.0
     # via -r requirements.in
 sphinx-basic-ng==1.0.0b2
     # via furo