[Snyk] Upgrade npm from 6.0.0 to 6.11.1#1

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snyk-bot wants to merge 1 commit intomasterfrom snyk-upgrade-414af8d1e4444f59c01c66b69e6cdcb8

+2,432-4,475

Commits on Aug 30, 2019

chore: upgrade npm from 6.0.0 to 6.11.1
snyk-test
committed