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] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -11,7 +11,7 @@ djangorestframework==3.9.1
 ed25519==1.4
 idna==2.8
 itypes==1.1.0
-Jinja2==2.10
+Jinja2==2.11.3
 Markdown==3.0.1
 MarkupSafe==1.1.0
 mysqlclient==1.3.13