Merge branch 'version/bump'

Bump to 2.3.4dev
PHPCS fixes for Zend\Valiator
Merge branch 'cs/#6540-zend-validator-cs-fixes' into develop

Close #6540
PHPCS fixes for Zend\Escaper
Merge branch 'cs/#6538-zend-escaper-cs-fixes' into develop

Close #6538
PHPCS fixes for Zend\XmlRpc
Merge branch 'cs/#6682-zend-xmlrpc-cs-fixes' into develop

Close #6682
PHPCS fixes for Zend\Uri
Merge branch 'cs/#6683-zend-uri-cs-fixes' into develop

Close #6683
change is_null to $value compare to null
for consistency with #3520
Merge branch 'hotfix/#6643-is-null-removal'

Close #6643
Merge branch 'hotfix/#6643-is-null-removal' into develop

Forward port #6643
Fixes #6403 : changing newInstanceArgs with exact class with pass creationOptions
sort the use statements
patch isset ternary on DbSelectFactory.php
Fixes cs : space after if and elseif in deep conditional
iirc, I already sent a request to php-cs-fixer repository for its feature but it won't be implemented because it require to much logic
space after close parenthesis
remove double suggest block at Zend\Version\composer.json
Merge branch 'hotfix/#6580-remove-duplicate-suggest-block-in-zend-version' into develop

Close #6580
Merge branch 'hotfix/#6743-if-spacing-psr2-compliance'

Close #6743