[Snyk] Security upgrade express from 4.20.0 to 4.21.1

[matteofigus]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json
  • package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	601/1000 Why? Recently disclosed, Has a fix available, CVSS 6.3	Cross-site Scripting (XSS) SNYK-JS-COOKIE-8163060	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: express

The new version differs by 7 commits.

• 8e229f9 4.21.1
• a024c8a fix(deps): cookie@0.7.1
• 7e562c6 4.21.0
• 1bcde96 fix(deps): qs@6.13.0 (#5946)
• 7d36477 fix(deps): serve-static@1.16.2 (#5951)
• 40d2d8f fix(deps): finalhandler@1.3.1
• 77ada90 Deprecate `"back"` magic string in redirects (#5935)

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project.

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🦉 Cross-site Scripting (XSS)