Merge branch 'sf6' into 'master'

Support for Symfony 6

Closes lexik#1

See merge request adynemo/maintenance-bundle!6

Merge branch 'fix' into 'master'

fix: remove args from execute with bindValue

See merge request adynemo/maintenance-bundle!5

Merge branch 'fix' into 'master'

fix: handle null value in insert statement

See merge request adynemo/maintenance-bundle!4

Merge branch 'fix' into 'master'

fix: invalid parameter number thrown by mariadb 10.1.*

See merge request adynemo/maintenance-bundle!3

Merge branch 'improvements' into 'master'

Improvements

See merge request adynemo/maintenance-bundle!2

remove unnecessary imports

Update .gitattributes