[Snyk] Security upgrade express from 4.16.2 to 4.21.1#27

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jjmschofield wants to merge 1 commit intomasterfrom snyk-fix-4dc1aed13e34bc55c1a86b3f34755813

+358-104

Commits on Oct 9, 2024

fix: package.json & yarn.lock to reduce vulnerabilities
snyk-bot
committed