[Snyk] Security upgrade node from 14.16.1 to 14.21.3#144

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gregnrobinson wants to merge 1 commit intomasterfrom snyk-fix-7eff8349eb6eff599d87f9b0e1ac3388

+1-1

Commits on Feb 23, 2023

fix: superset-websocket/Dockerfile to reduce vulnerabilities
snyk-bot
committed