Update sphinx to ~=8.2, sphinx-rtd-theme to ~=3.0.2 (#177)

Updates the requirements on [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) to permit the latest version.
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@1.3.0...3.0.2)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 8.2
  dependency-type: direct:development
- dependency-name: sphinx-rtd-theme
  dependency-version: 3.0.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]

.circleci/config.yml

@@ -112,11 +112,11 @@ jobs:
   docs:
     working_directory: ~/wayback
     docker:
-      - image: cimg/python:3.13
+      - image: cimg/python:3.14
     steps:
       - checkout
       - setup_pip:
-          python-version: "3.13"
+          python-version: "3.14"
           install-docs: true
       - run:
           name: Build docs

.readthedocs.yml

@@ -14,9 +14,9 @@ formats: all
 
 # Optionally set the version of Python and requirements required to build your docs
 build:
-  os: ubuntu-22.04
+  os: ubuntu-24.04
   tools:
-    python: "3.13"
+    python: "3.14"
 
 python:
   install:

docs/source/conf.py

@@ -43,6 +43,7 @@
     'IPython.sphinxext.ipython_console_highlighting',
     'numpydoc',
     'sphinx_copybutton',
+    'sphinx_rtd_theme',
 ]
 
 # Generate the API documentation when building
@@ -108,8 +109,6 @@
 # a list of builtin themes.
 #
 html_theme = 'sphinx_rtd_theme'
-import sphinx_rtd_theme
-html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the

pyproject.toml

@@ -40,11 +40,11 @@ dev = [
 # versions < 3.10 (which we support), so you have to install them in a separate
 # environment from the other dev dependencies.
 docs = [
-    "sphinx ~=7.2.6",
+    "sphinx ~=8.2",
     "ipython ~=8.37.0",
     "numpydoc ~=1.10.0",
     "sphinx-copybutton ~=0.5.2",
-    "sphinx_rtd_theme ~=1.3.0",
+    "sphinx_rtd_theme ~=3.0.2",
 ]
 # For running tests.
 test = [