v3.2.1

What's Changed

• chg: Provide clear vulnerability reporting instructions by @nlawrence22 in #304
• fix: Test failures due to marshmallow depreciation warnings by @VerinaG in #307
• Update why.rst by @davidhariri in #301
• Add missing runtime dependencies by @vkunz in #306
• build: Update pypa/gh-action-pypi-publish tag to release/v1 by @VerinaG in #308
• Bump Version: 3.2.0 → 3.2.1 by @VerinaG in #309

Full Changelog: v3.2.0...v3.2.1