Upgrade expected version of pytz to 2022.6 [gemnasium-python only]

What does this MR do?

As per failing QA tests -

❌ python-pipenv-require-system-python-FREEZE https://gitlab.com/gitlab-org/security-products/tests/python-pipenv/-/pipelines/682047106 - qa-gemnasium-python-dependency_scanning

❌ python-pipenv-offline-FREEZE https://gitlab.com/gitlab-org/security-products/tests/python-pipenv/-/pipelines/682047181 - qa-gemnasium-python-dependency_scanning

❌ python-pipenv-master https://gitlab.com/gitlab-org/security-products/tests/python-pipenv/-/pipelines/682047184 - qa-gemnasium-python-dependency_scanning

❌ python-setuptools-offline-FREEZE https://gitlab.com/gitlab-org/security-products/tests/python-setuptools/-/pipelines/682047083 - qa-gemnasium-python-dependency_scanning

❌ python-setuptools-main https://gitlab.com/gitlab-org/security-products/tests/python-setuptools/-/pipelines/682047049 - qa-gemnasium-python-dependency_scanning

Upgrade the expected version of pytz

What are the relevant issue numbers?

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer