Bump jinja2 from 2.10.1 to 2.11.3

Bumps [jinja2](https://github.com/pallets/jinja) from 2.10.1 to 2.11.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/master/CHANGES.rst)
- [Commits](pallets/jinja@2.10.1...2.11.3)

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,4 +1,4 @@
-Jinja2==2.10.1
+Jinja2==2.11.3
 markdown2==2.3.7
 selenium==3.14.1
 Pillow==7.1.0