get rid of the "composer self-update"
get rid of the "composer self-update"

It has been causing issues and it isn't really necessary anymore

cemoulto/GeoIP2-php,maxmind/GeoIP2-php,cemoulto/GeoIP2-php,maxmind/GeoIP2-php,g9007676/GeoIP2-php,g9007676/GeoIP2-php