build(deps): bump pytz from 2022.7.1 to 2023.2 (#107)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -11,7 +11,7 @@ markupsafe==1.1.1
 packaging==20.9
 pygments==2.7.4
 pyparsing==2.4.7
-pytz==2022.7.1
+pytz==2023.2
 pyyaml==5.4.1
 requests==2.28.2
 snowballstemmer==2.2.0