[Snyk] Upgrade bootstrap from 4.3.1 to 4.4.1#6

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snyk-bot wants to merge 1 commit intomasterfrom snyk-upgrade-62793710c9c653b99a881067031b874a

+4-4

Commits on Jan 6, 2020

fix: upgrade bootstrap from 4.3.1 to 4.4.1
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