Merge pull request #717 from searxng/dependabot/pip/master/sphinx-issues-2.0.0

Bump sphinx-issues from 1.2.0 to 2.0.0

requirements-dev.txt

@@ -9,7 +9,7 @@ selenium==4.1.0
 twine==3.7.1
 Pallets-Sphinx-Themes==2.0.2
 Sphinx==4.3.2
-sphinx-issues==1.2.0
+sphinx-issues==2.0.0
 sphinx-jinja==1.2.1
 sphinx-tabs==3.2.0
 sphinxcontrib-programoutput==0.17