chore(deps): bump werkzeug from 3.0.3 to 3.0.6 in /appengine/standard/flask/tutorial (#12729)

* chore(deps): bump werkzeug in /appengine/standard/flask/tutorial

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 3.0.3 to 3.0.6.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@3.0.3...3.0.6)

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

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

* add pytest for newer python

* Add missing dependency

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Katie McLaughlin <[email protected]>

Author: dependabot[bot]

appengine/standard/flask/tutorial/requirements-test.txt

@@ -1,2 +1,4 @@
 # pin pytest to 4.6.11 for Python2.
 pytest==4.6.11; python_version < '3.0'
+pytest==8.3.4; python_version >= '3.0'
+six==1.17.0

appengine/standard/flask/tutorial/requirements.txt

@@ -1,4 +1,4 @@
 Flask==1.1.4; python_version < '3.0'
 Flask==3.0.0; python_version > '3.0'
 Werkzeug==1.0.1; python_version < '3.0'
-Werkzeug==3.0.3; python_version > '3.0'
+Werkzeug==3.0.6; python_version > '3.0'