feat: refresh model

Update composer.json

feat: handle cases when table does not exist

fix: return null instead of bool

fix: return false on no result

tablesExist() helper function

Merge branch 'main' of https://github.com/scrawler-labs/arca-orm

fix: broken test

Merge pull request #17 from scrawler-labs/renovate/squizlabs-php_code…

…sniffer-3.x

chore(deps): update dependency squizlabs/php_codesniffer to v3.7.2

Update README.md