[Snyk] Security upgrade express from 4.19.2 to 4.21.2#20

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shawnsnyk wants to merge 1 commit intomainfrom snyk-fix-6d4b5487d34ed87ee83b1816c8a2fbc2

Commits on Dec 9, 2024

fix: javascript-example/express-app-html-response/package.json & javascript-example/express-app-html-response/package-lock.json to reduce vulnerabilities
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