Avoid Node.js v10.4.0 for now
Avoid Node.js v10.4.0 for now

If use Node.js v10.4.0, ujs's build will result in an error, so
temporarily fix the version to v10.3.0.

Ref: https://travis-ci.org/rails/rails/jobs/389960856

yahonda/rails,printercu/rails,MSP-Greg/rails,baerjam/rails,utilum/rails,Envek/rails,flanger001/rails,Vasfed/rails,bogdanvlviv/rails,kddeisz/rails,kmcphillips/rails,arunagw/rails,yalab/rails,vipulnsward/rails,kmcphillips/rails,Stellenticket/rails,illacceptanything/illacceptanything,eileencodes/rails,yahonda/rails,prathamesh-sonpatki/rails,aditya-kapoor/rails,yawboakye/rails,printercu/rails,tjschuck/rails,esparta/rails,mechanicles/rails,starknx/rails,mohitnatoo/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,mohitnatoo/rails,prathamesh-sonpatki/rails,BlakeWilliams/rails,eileencodes/rails,baerjam/rails,tgxworld/rails,jeremy/rails,fabianoleittes/rails,Envek/rails,iainbeeston/rails,yhirano55/rails,georgeclaghorn/rails,mohitnatoo/rails,repinel/rails,notapatch/rails,fabianoleittes/rails,esparta/rails,notapatch/rails,flanger001/rails,repinel/rails,starknx/rails,Vasfed/rails,gauravtiwari/rails,aditya-kapoor/rails,arunagw/rails,Stellenticket/rails,EmmaB/rails-1,illacceptanything/illacceptanything,schuetzm/rails,jeremy/rails,mechanicles/rails,iainbeeston/rails,jeremy/rails,joonyou/rails,georgeclaghorn/rails,baerjam/rails,illacceptanything/illacceptanything,BlakeWilliams/rails,illacceptanything/illacceptanything,Envek/rails,joonyou/rails,Edouard-chin/rails,shioyama/rails,betesh/rails,betesh/rails,baerjam/rails,palkan/rails,Stellenticket/rails,rails/rails,gauravtiwari/rails,notapatch/rails,illacceptanything/illacceptanything,BlakeWilliams/rails,starknx/rails,utilum/rails,illacceptanything/illacceptanything,flanger001/rails,schuetzm/rails,aditya-kapoor/rails,MSP-Greg/rails,Edouard-chin/rails,rafaelfranca/omg-rails,illacceptanything/illacceptanything,tgxworld/rails,utilum/rails,yawboakye/rails,mechanicles/rails,lcreid/rails,illacceptanything/illacceptanything,Edouard-chin/rails,illacceptanything/illacceptanything,schuetzm/rails,tgxworld/rails,kmcphillips/rails,jeremy/rails,aditya-kapoor/rails,assain/rails,Stellenticket/rails,MSP-Greg/rails,yawboakye/rails,georgeclaghorn/rails,bogdanvlviv/rails,MSP-Greg/rails,mechanicles/rails,printercu/rails,Vasfed/rails,esparta/rails,utilum/rails,vipulnsward/rails,yhirano55/rails,notapatch/rails,arunagw/rails,shioyama/rails,flanger001/rails,lcreid/rails,joonyou/rails,lcreid/rails,prathamesh-sonpatki/rails,vipulnsward/rails,rails/rails,Edouard-chin/rails,Vasfed/rails,illacceptanything/illacceptanything,lcreid/rails,BlakeWilliams/rails,joonyou/rails,assain/rails,repinel/rails,betesh/rails,eileencodes/rails,rails/rails,vipulnsward/rails,Envek/rails,palkan/rails,arunagw/rails,iainbeeston/rails,tjschuck/rails,deraru/rails,deraru/rails,esparta/rails,kmcphillips/rails,kddeisz/rails,schuetzm/rails,repinel/rails,shioyama/rails,Erol/rails,rafaelfranca/omg-rails,yahonda/rails,betesh/rails,gauravtiwari/rails,fabianoleittes/rails,Erol/rails,illacceptanything/illacceptanything,deraru/rails,illacceptanything/illacceptanything,yawboakye/rails,Erol/rails,EmmaB/rails-1,yahonda/rails,shioyama/rails,yalab/rails,illacceptanything/illacceptanything,assain/rails,assain/rails,Erol/rails,yhirano55/rails,printercu/rails,eileencodes/rails,yhirano55/rails,palkan/rails,rafaelfranca/omg-rails,bogdanvlviv/rails,kddeisz/rails,rails/rails,tgxworld/rails,georgeclaghorn/rails,palkan/rails,tjschuck/rails,yalab/rails,tjschuck/rails,EmmaB/rails-1,prathamesh-sonpatki/rails,kddeisz/rails,fabianoleittes/rails,deraru/rails,iainbeeston/rails,yalab/rails,bogdanvlviv/rails,mohitnatoo/rails