Bump jinja2 from 2.11.3 to 3.1.3 in /boilerplates/dash

Bumps [jinja2](https://github.com/pallets/jinja) from 2.11.3 to 3.1.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@2.11.3...3.1.3)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: direct:production
...

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

boilerplates/dash/requirements.txt

@@ -12,7 +12,7 @@ gunicorn==19.9.0
 idna==2.7
 ipython-genutils==0.2.0
 itsdangerous==0.24
-Jinja2==2.11.3
+Jinja2==3.1.3
 jsonschema==2.6.0
 jupyter-core==4.11.2
 MarkupSafe==1.0