Bump zipp from 3.3.0 to 3.3.1

Bumps zipp from 3.3.0 to 3.3.1.

Changelog

Sourced from zipp's changelog.

v3.3.1

bpo-42043: Add tests capturing subclassing requirements.

Commits

• c74c8a2 Update changelog.
• 6071d21 Merge https://github.com/jaraco/skeleton
• 9e2b456 Add test ensuring subclass behaviors are retained during traversal.
• dcd7cbd Refresh docs to prefer Github Actions to Azure Pipelines. Ref jaraco/skeleton...
• ce34be2 Cut releases from Github Actions instead of Azure Pipelines. Ref jaraco/skele...
• ea912cf Add workflows for running tests. Ref jaraco/skeleton#24.
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