Fix sourceFileName option in Babel config (tools/build.js)
Fix sourceFileName option in Babel config (tools/build.js)

kriasoft/graphql-starter-kit,ht22pt/node-starter,MyiWorlds/myiworlds.backend,MyiWorlds/myiworlds.backend,kriasoft/nodejs-api-starter,ht22pt/node-starter,rjdestigter/clubdidi,kriasoft/nodejs-api-starter,ht22pt/node-starter,rjdestigter/clubdidi,rjdestigter/clubdidi,MyiWorlds/myiworlds.backend,kriasoft/nodejs-api-starter,kriasoft/nodejs-api-starter