Bump the pip group across 3 directories with 1 update

Bumps the pip group with 1 update in the /templates/web/python_flask directory: [jinja2](https://github.com/pallets/jinja).


Updates `jinja2` from 3.1.2 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@3.1.2...3.1.3)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: indirect
  dependency-group: pip-security-group
...

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