0.7.0

• Enhancement: Update localheinz/php-cs-fixer-config (#56), by @localheinz
• Enhancement: Require phpstan/phpstan (#57), by @localheinz
• Fix: Add note about mutation testing to CONTRIBUTING.md (#58), by @localheinz
• Enhancement: Split auto review tests from unit tests (#59), by @localheinz
• Fix: Streamline .editorconfig (#60), by @localheinz
• Enhancement: Update phpunit/phpunit (#61), by @localheinz
• Enhancement: Add configuration for probot-stale bot (#62), by @localheinz
• Fix: Update localheinz/php-cs-fixer-config (#65), by @localheinz
• Enhancement: Update localheinz/test-util (#66), by @localheinz
• Fix: Add more test cases for sniffing JSON without whitespace (#67), by @localheinz
• Fix: Docblock (#68), by @localheinz
• Fix: Reject mixed tabs and spaces as indent (#69), by @localheinz
• Fix: Update localheinz/json-printer (#70), by @localheinz
• Fix: Add more test cases for JSON without indent (#72), by @localheinz
• Fix: Sniff only pure indents, no mixed spaces and tabs (#71), by @localheinz
• Enhancement: Extract Indent value object (#73), by @localheinz
• Fix: Add missing test (#74), by @localheinz
• Fix: Rename field (#75), by @localheinz
• Enhancement: Extract NewLine value object (#76), by @localheinz
• Enhancement: Extract Json value object (#64), by @localheinz
• Enhancement: Update infection/infection and phpstan/phpstan (#63), by @localheinz
• Fix: Remove non-existent argument from DocBlock (#78), by @localheinz
• Enhancement: Turn Sniffer into named constructor on Format value object (#77), by @localheinz
• Enhancement: Extract exceptions (#79), by @localheinz
• Fix: Simplify imports (#80), by @localheinz
• Enhancement: Update localheinz/php-cs-fixer-config (#81), by @localheinz