CI: Test against PHP 7.4snapshot instead of nightly (8.0)
CI: Test against PHP 7.4snapshot instead of nightly (8.0)

drieschel/dbal,doctrine/dbal,doctrine/dbal,BenMorel/dbal,drieschel/dbal,BenMorel/dbal,lcobucci/dbal,mikeSimonson/dbal,lcobucci/dbal,mikeSimonson/dbal