Bump jinja2 from 2.10 to 2.11.3

Bumps [jinja2](https://github.com/pallets/jinja) from 2.10 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...2.11.3)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.dev.txt

@@ -14,7 +14,7 @@ tox==3.2.1
 
 # Sphinx
 MarkupSafe==1.0
-Jinja2==2.10
+Jinja2==2.11.3
 Pygments==2.2.0
 Sphinx==1.7.7