Merge pull request #716 from searxng/dependabot/pip/master/sphinx-jinja-1.4.0

Bump sphinx-jinja from 1.2.1 to 1.4.0

requirements-dev.txt

@@ -10,7 +10,7 @@ twine==3.7.1
 Pallets-Sphinx-Themes==2.0.2
 Sphinx==4.3.2
 sphinx-issues==2.0.0
-sphinx-jinja==1.2.1
+sphinx-jinja==1.4.0
 sphinx-tabs==3.2.0
 sphinxcontrib-programoutput==0.17
 sphinx-autobuild==2021.3.14