Security Vulnerabilities - Request to update express version from 4.19.2 to 4.21.1

[tblauer]

When running anchor and trivy vulnerability scans on this library, there are 6 CVEs showing up that are all associated with the version of express and/or it's dependencies.

Updating to express 4.21.1 would update all of the affected libraries to versions in which the vulnerabilities have been fixed

The table below shows the affected libraries, the fixed version according to the CVE and which version of the dependent libraries are in the specified version of express

CVE	Package	Installed Version	Fixed In	express 4.20.0	express 4.21.0	express 4.21.1
CVE-2024-43796	express	4.19.2	4.20.0	4.20.0	4.21.0	4.21.1
CVE-2024-45296	path-to-regexp	0.1.7	0.1.10 or 8.0.0	0.1.10	0.1.10	0.1.10
CVE-2024-45590	body-parser	1.20.2	1.20.3	1.20.3	1.20.3	1.20.3
CVE-2024-43799	send	0.18.0	0.19.0	0.19.0	0.19.0	0.19.0
CVE-2024-43800	serve-static	1.16.0	1.16.0	1.16.0	1.16.2	1.16.2
CVE-2024-47764	cookie	0.6.0	0.7.0	0.6.0	0.6.0	0.7.1

[acalcutt]

Seems like a failed test stopped that from getting updated in #1401 . If someone wants to look into that we can move it forward

[acalcutt]

If you have a chance could you evaluate this PR to upgrade express to v5 and let me know if it has any issues for you
#1429