Pin Sphinx 5.3.0, refs #1971

Furo is not yet compatible with Sphinx 6.0
2022-12-31 11:13:56 -08:00 · 2022-12-31 11:13:56 -08:00 · ca07fff3e2
commit ca07fff3e2
--- a/setup.py
+++ b/setup.py
@ -66,6 +66,7 @@ setup(
    setup_requires=["pytest-runner"],
    extras_require={
        "docs": [
+            "Sphinx==5.3.0",
            "furo==2022.12.7",
            "sphinx-autobuild",
            "codespell",