docs: upgrade sphinx version to build docs

The version of furo used is not compatible with the newly available
Sphinx.

diff --git a/psycopg/setup.py b/psycopg/setup.py
index 435d51f77fd8a3a7ef4bef40562698ccb345a880..bb22995954071372a887f13265be3216fdfb147f 100644 (file)
--- a/psycopg/setup.py
+++ b/psycopg/setup.py
@@ -55,8 +55,8 @@ extras_require = {
     ],
     # Requirements needed to build the documentation
     "docs": [
-        "Sphinx >= 4.2",
-        "furo == 2021.11.23",
+        "Sphinx >= 5.0",
+        "furo == 2022.6.21",
         "sphinx-autobuild >= 2021.3.14",
         "sphinx-autodoc-typehints >= 1.12",
     ],