v0.3.8

What's Changed

• Bump flake8 from 7.2.0 to 7.3.0 in /.github/workflows by @dependabot[bot] in #201
• Add basic unit tests
• Add cookie auth as alternative to username and password to fix #203
• Restore the battery voltage and hours protected fields to fix #202

Full Changelog: v0.3.7...v0.3.8