Bump jinja2 from 2.11.1 to 2.11.3

Bumps [jinja2](https://github.com/pallets/jinja) from 2.11.1 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@2.11.1...2.11.3)

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

Author: dependabot[bot]

requirements.txt

@@ -1,7 +1,7 @@
 Click==7.0
 Django==3.0.14
 djangorestframework==3.11.2
-Jinja2==2.11.1
+Jinja2==2.11.3
 livereload==2.6.1
 Markdown==3.2.1
 MarkupSafe==1.1.1