* 6.3:
Prepare release
Ignore error
Use SplObjectStorage::offsetSet() instead of deprecated SplObjectStorage::attach()
Suppress warning
Update tools
Prepare release
Use SplObjectStorage::offsetSet() instead of deprecated SplObjectStorage::attach()
Suppress warning
Prepare release
Test with more versions
Do not cache Composer dependencies
Suppress warning
Do not use implicitly nullable parameters and prepare release
Do not use implicitly nullable parameters and prepare release
* Configure phpstan/phpstan-strict-rules, tomasvotruba/type-coverage, and ergebnis/phpstan-rules
* Update PHPStan configuration
* Put Phive binary under version control and manage it through "ant update-tools"
Sebastian Bergmann