chore(babel): update to specific node version
chore(babel): update to specific node version

mwegman/spark-js-sdk,aimeex3/spark-js-sdk,bbender/spark-js-sdk,mwegman/spark-js-sdk,bbender/spark-js-sdk,adamweeks/spark-js-sdk,adamweeks/spark-js-sdk,aimeex3/spark-js-sdk,bbender/spark-js-sdk,mwegman/spark-js-sdk,aimeex3/spark-js-sdk,adamweeks/spark-js-sdk