Chore(deps): Bump sphinx-rtd-theme from 3.0.2 to 3.1.0 (#991)

Bumps [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) from 3.0.2 to 3.1.0.
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@3.0.2...3.1.0)

---
updated-dependencies:
- dependency-name: sphinx-rtd-theme
  dependency-version: 3.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -4,7 +4,7 @@
 #
 #    pip-compile --resolver=backtracking requirements.in
 #
-alabaster==1.0.0
+alabaster==0.7.16
     # via sphinx
 babel==2.17.0
     # via sphinx
@@ -20,6 +20,8 @@ idna==3.7
     # via requests
 imagesize==1.4.1
     # via sphinx
+importlib-metadata==8.7.1
+    # via sphinx
 jinja2==3.1.6
     # via sphinx
 markupsafe==2.1.2
@@ -30,16 +32,14 @@ pygments==2.19.1
     # via sphinx
 requests==2.32.2
     # via sphinx
-roman-numerals-py==3.1.0
-    # via sphinx
 snowballstemmer==2.2.0
     # via sphinx
-sphinx==8.2.3
+sphinx==7.4.7
     # via
     #   -r docs/requirements.in
     #   sphinx-rtd-theme
     #   sphinxcontrib-jquery
-sphinx-rtd-theme==3.0.2
+sphinx-rtd-theme==3.1.0
     # via -r docs/requirements.in
 sphinxcontrib-applehelp==2.0.0
     # via sphinx
@@ -55,5 +55,9 @@ sphinxcontrib-qthelp==2.0.0
     # via sphinx
 sphinxcontrib-serializinghtml==2.0.0
     # via sphinx
+tomli==2.4.0
+    # via sphinx
 urllib3==2.2.2
     # via requests
+zipp==3.23.0
+    # via importlib-metadata