doc: update doc/sphinx/requirements.txt
Update the following requirements to their latest version:
* Pygments - syntax highlighting
* pytz - world timezone definitions
* certifi - Mozilla's CA bundle
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/doc/sphinx/requirements.txt b/doc/sphinx/requirements.txt
index aed4492..b74661a 100644
--- a/doc/sphinx/requirements.txt
+++ b/doc/sphinx/requirements.txt
@@ -1,6 +1,6 @@
alabaster==0.7.12
Babel==2.9.1
-certifi==2022.12.7
+certifi==2023.5.7
charset-normalizer==2.0.12
docutils==0.16
idna==3.3
@@ -8,9 +8,9 @@
Jinja2==3.0.3
MarkupSafe==2.1.1
packaging==21.3
-Pygments==2.11.2
+Pygments==2.15.1
pyparsing==3.0.7
-pytz==2022.1
+pytz==2023.3
requests==2.31.0
six==1.16.0
snowballstemmer==2.2.0