SC-95272: Remove support for Python 3.3

[bxsx]

Description of the change

Python 3.3 reached its end-of-life on 2017-09-29 and it's no longer supported. It also requires requests package in an unsupported version with a security vulnerability.

See SC-95272 for more details on motivation and rationale.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Maintenance

Related issues

• Fix [SC-95272]

Checklists

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• "Ready for review" label attached to the PR and reviewers mentioned in a comment
• Changes have been reviewed by at least one other engineer
• Issue from task tracker has a link to this pull request

[shortcut-integration]

This pull request has been linked to Shortcut Story #95272: Python-SDK: Remove support for Python 3.3.

[waltjones]

👍