[Snyk] Security upgrade python from 3.5-alpine to 3.11.0a3-alpine#123

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snyk-bot wants to merge 1 commit intomasterfrom snyk-fix-3fa521ee2487d574ff14ba4e551dd4a4

+1-1

Commits on Dec 31, 2021

fix: ipython/Dockerfile.engine to reduce vulnerabilities
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