Merge pull request #72 from searxng/dependabot/pip/master/jinja2-3.0.0

Bump jinja2 from 2.11.3 to 3.0.0

requirements.txt

@@ -2,7 +2,7 @@ certifi==2020.12.05
 babel==2.9.1
 flask-babel==2.0.0
 flask==1.1.2
-jinja2==2.11.3
+jinja2==3.0.0
 lxml==4.6.3
 pygments==2.8.1
 python-dateutil==2.8.1