Bump jinja2 from 3.1.4 to 3.1.5 in /flask

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.4 to 3.1.5.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.4...3.1.5)

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

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

flask/requirements.txt

@@ -4,7 +4,7 @@ Flask-Bootstrap==3.3.7.1
 Flask-Uploads==0.2.1
 Flask-WTF==0.15.1
 itsdangerous==1.1.0
-Jinja2==3.1.4
+Jinja2==3.1.5
 MarkupSafe==2.0.1
 python-dotenv==0.17.1
 visitor==0.1.3