fix(deps): use serenity-js 1.2.5, which provides the new config class
fix(deps): use serenity-js 1.2.5, which provides the new config class

affects: da39a3ee5e6b4b0d3255bfef95601890afd80709@serenity-js/cucumber-2

jan-molak/serenity-js,jan-molak/serenity-js,jan-molak/serenity-js,red6/serenity-js,red6/serenity-js,red6/serenity-js,jan-molak/serenity-js,red6/serenity-js