Common: add encrypted S3 credentials to .travis.yml (closes #2673)
Common: add encrypted S3 credentials to .travis.yml (closes #2673)

RetentionGrid/snowplow,Propertyfinder/snowplow,simplybusiness/snowplow-fork,RajeshHegde/snowplow,acgray/snowplow,snowplow/snowplow,haensel-ams/snowplow,liveintent-berlin/snowplow,liveintent-berlin/snowplow,bigdecisions/snowplow,simplybusiness/snowplow-fork,chuwy/snowplow-ci,liveintent-berlin/snowplow,TimothyKlim/snowplow,atotech/snowplow,sspinc/snowplow,acgray/snowplow,RetentionGrid/snowplow,liveintent-berlin/snowplow,RajeshHegde/snowplow,liveintent-berlin/snowplow,haensel-ams/snowplow,haensel-ams/snowplow,nakulgan/snowplow,aldemirenes/snowplow,RajeshHegde/snowplow,RajeshHegde/snowplow,RetentionGrid/snowplow,snowplow/snowplow,sspinc/snowplow,simplybusiness/snowplow-fork,acgray/snowplow,sspinc/snowplow,bigdecisions/snowplow,acgray/snowplow,TimothyKlim/snowplow,bigdecisions/snowplow,liveintent-berlin/snowplow,Propertyfinder/snowplow,atotech/snowplow,sspinc/snowplow,bigdecisions/snowplow,aldemirenes/snowplow,atotech/snowplow,nakulgan/snowplow,nakulgan/snowplow,aldemirenes/snowplow,acgray/snowplow,chuwy/snowplow-ci,chuwy/snowplow-ci,atotech/snowplow,atotech/snowplow,snowplow/snowplow,nakulgan/snowplow,TimothyKlim/snowplow,chuwy/snowplow-ci,simplybusiness/snowplow-fork,nakulgan/snowplow,simplybusiness/snowplow-fork,sspinc/snowplow,Propertyfinder/snowplow,aldemirenes/snowplow,sspinc/snowplow,RetentionGrid/snowplow,haensel-ams/snowplow,RajeshHegde/snowplow,TimothyKlim/snowplow,chuwy/snowplow-ci,aldemirenes/snowplow,simplybusiness/snowplow-fork,haensel-ams/snowplow,Propertyfinder/snowplow,haensel-ams/snowplow,RajeshHegde/snowplow,acgray/snowplow,Propertyfinder/snowplow,snowplow/snowplow,Propertyfinder/snowplow,TimothyKlim/snowplow,bigdecisions/snowplow,bigdecisions/snowplow,chuwy/snowplow-ci,nakulgan/snowplow,aldemirenes/snowplow,atotech/snowplow,RetentionGrid/snowplow