[sphinx] use Sphinx >= 7.1.0 and furo >= 2023.7.26

Change-Id: I6df5d09f875dde883733fb7b188e70ab5c3131c3
---
M docs/conf.py
M docs/requirements.txt
2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index e29746b..e310fe8 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -43,7 +43,7 @@
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #
-needs_sphinx = '6.2.1'
+needs_sphinx = '7.1.0'
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
diff --git a/docs/requirements.txt b/docs/requirements.txt
index c16dfa7..593130e 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 # This is a PIP requirements file for building Sphinx documentation of pywikibot
 # requirements.txt is also needed
-sphinx >= 6.2.1, < 7.0
+sphinx >= 7.1.0
 rstcheck >=6.1.2
 sphinxext-opengraph >= 0.8.1
-furo >= 2023.3.27
+furo >= 2023.7.26

