doc: update Sphinx requirements for certifi

Upgrade to version 2022.12.7.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/doc/sphinx/requirements.txt b/doc/sphinx/requirements.txt
index 5baec4d..f9f6cc6 100644 (file)
--- a/doc/sphinx/requirements.txt
+++ b/doc/sphinx/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.9.1
-certifi==2021.10.8
+certifi==2022.12.7
 charset-normalizer==2.0.12
 docutils==0.16
 idna==3.3