[Snyk] Security upgrade express from 4.16.2 to 4.20.0#4

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devsmart wants to merge 1 commit intomasterfrom

snyk-fix-1bf6f3c4ca5d0efe95f0755f3ef31dc8

Commits on Sep 18, 2024

fix: training/package.json & training/package-lock.json to reduce vulnerabilities
snyk-bot
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