[#3766] Update Sphinx requirements

.readthedocs.yaml

@@ -1,7 +1,7 @@
 build:
   os: ubuntu-20.04
   tools:
-    python: '3.9'
+    python: '3.13'
 formats: all
 python:
    install:

doc/sphinx/src/requirements.txt

@@ -1,57 +1,57 @@
 #
-# This file is autogenerated by pip-compile with Python 3.11
+# This file is autogenerated by pip-compile with Python 3.13
 # by the following command:
 #
 #    pip-compile ./src/requirements.in
 #
-alabaster==0.7.16
+alabaster==1.0.0
     # via sphinx
-babel==2.15.0
+babel==2.17.0
     # via sphinx
-certifi==2024.2.2
+certifi==2025.1.31
     # via requests
-charset-normalizer==3.3.2
+charset-normalizer==3.4.1
     # via requests
-docutils==0.20.1
+docutils==0.21.2
     # via
     #   sphinx
     #   sphinx-rtd-theme
-idna==3.7
+idna==3.10
     # via requests
 imagesize==1.4.1
     # via sphinx
-jinja2==3.1.4
+jinja2==3.1.5
     # via sphinx
-markupsafe==2.1.5
+markupsafe==3.0.2
     # via jinja2
-packaging==24.0
+packaging==24.2
     # via sphinx
-pygments==2.18.0
+pygments==2.19.1
     # via sphinx
-requests==2.32.2
+requests==2.32.3
     # via sphinx
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==7.3.7
+sphinx==8.1.3
     # via
     #   -r ./src/requirements.in
     #   sphinx-rtd-theme
     #   sphinxcontrib-jquery
-sphinx-rtd-theme==2.0.0
+sphinx-rtd-theme==3.0.2
     # via -r ./src/requirements.in
-sphinxcontrib-applehelp==1.0.8
+sphinxcontrib-applehelp==2.0.0
     # via sphinx
-sphinxcontrib-devhelp==1.0.6
+sphinxcontrib-devhelp==2.0.0
     # via sphinx
-sphinxcontrib-htmlhelp==2.0.5
+sphinxcontrib-htmlhelp==2.1.0
     # via sphinx
 sphinxcontrib-jquery==4.1
     # via sphinx-rtd-theme
 sphinxcontrib-jsmath==1.0.1
     # via sphinx
-sphinxcontrib-qthelp==1.0.7
+sphinxcontrib-qthelp==2.0.0
     # via sphinx
-sphinxcontrib-serializinghtml==1.1.10
+sphinxcontrib-serializinghtml==2.0.0
     # via sphinx
-urllib3==2.2.1
+urllib3==2.3.0
     # via requests