v0.6.4

Main changes

• Fix evaluate condition data-if by @blocknotes in #15

Internal changes

• Fix some RuboCop issues by @blocknotes in #17
• Setup Appraisal + Setup Cuprite by @blocknotes in #16
• GitHub Actions improvements by @blocknotes in #12
• Update linters config by @blocknotes in #13

Full Changelog: v0.6.0...v0.6.4