v3.2.0

What's Changed

• chore: update dependencies in Cargo.toml files to use workspace features and add new optional dependencies by @ya7010 in #164
• docs: document field self custom validation and helper traits by @ya7010 in #165
• feat: implement PartialEq on validation error types by @ya7010 in #167
• chore: bump version to 3.2.0 by @ya7010 in #168

Full Changelog: v3.1.2...v3.2.0