I was able to resolve that through updating the composer.jasonjson file by replacing
"fabpot/php-cs-fixer": "~1.2"
with
"friendsofphp/php-cs-fixer": "~2.0"
and on the composer.lock replacing
"fabpot/php-cs-fixer": "0.4.0"
with
"friendsofphp/php-cs-fixer": "0.4.0"
and replacing
"fabpot/php-cs-fixer": "1.7.*"
with
"friendsofphp/php-cs-fixer": "2.0.*"