Bump jinja2 from 2.11.3 to 3.1.4 in /session-store

Bumps [jinja2](https://github.com/pallets/jinja) from 2.11.3 to 3.1.4.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@2.11.3...3.1.4)

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

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

Author: dependabot[bot]

session-store/requirements.txt

@@ -1,7 +1,7 @@
 Click==7.0
 Flask==1.0.3
 itsdangerous==1.1.0
-Jinja2==2.11.3
+Jinja2==3.1.4
 MarkupSafe==1.1.1
 PyMySQL==0.9.3
 redis==3.2.1