build(deps): bump jinja2 from 3.1.5 to 3.1.6 in /css-inline/tests

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.5 to 3.1.6.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.5...3.1.6)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-version: 3.1.6
  dependency-type: indirect
...

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

Author: dependabot[bot]

css-inline/tests/requirements-test.txt

@@ -10,7 +10,7 @@ flask==2.2.5
     # via -r requirements-test.in
 itsdangerous==2.1.2
     # via flask
-jinja2==3.1.5
+jinja2==3.1.6
     # via flask
 markupsafe==2.1.3
     # via