Bump jinja2 from 2.10.3 to 2.11.3 in /getting-started

Bumps [jinja2](https://github.com/pallets/jinja) from 2.10.3 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@2.10.3...2.11.3)

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

getting-started/requirements.txt

@@ -15,7 +15,7 @@ ipython==7.9.0
 ipython-genutils==0.2.0
 ipywidgets==7.5.1
 jedi==0.15.1
-Jinja2==2.10.3
+Jinja2==2.11.3
 json5==0.8.5
 jsonschema==3.1.1
 jupyter