Update of Gitlab CI Core due to PHPCompatibility & PHPCSUtils update

Requirements

Update PHPcs command arguments

Descriptive title for this enhancement

Update of Gitlab-ci.yml within FD Core due to PHPCompatibiliy update

Actual behavior

Error are now reported by PHP Compatibility due to PHP 8.0 checks

Expected behavior

No more error related to PHP 8.0+ within our pipelines

Step by step description of new behaviour

Update PHPCs command line to reflect the PHP release to be used

phpcs --standard=PHPCompatibility --runtime-set testVersion 7.0-7.4 --file-list=./filelist

Benefits

Gitlab CI won't report any errors.

Possible Drawbacks

We need to remember to change the command arguments when we update FD to PHP 7.4 +

Applicable Issues

None.