Bump the composer version
Bump the composer version

Installing 4.0 with Laravel Spark failed as it used firebase/php-jwt v3.0.0 but Spark requires 4.0+

This is fixed by using "~5.0"
auth0/docs,auth0/docs,yvonnewilson/docs,jeffreylees/docs,auth0/docs,yvonnewilson/docs,jeffreylees/docs,yvonnewilson/docs,jeffreylees/docs