[Snyk] Security upgrade express from 4.18.2 to 4.22.0

[danpetitt]

Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Allocation of Resources Without Limits or Throttling SNYK-JS-QS-14724253	828

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🦉 Allocation of Resources Without Limits or Throttling

[danpetitt]

This is a minor version update that, according to the official changelog, contains no breaking changes. The upgrade from 4.18.2 to 4.22.0 consists of bug fixes, security patches, and backward-compatible feature additions. One notable change is the deprecation of res.location("back") and res.redirect("back") in version 4.21.0, which developers should be aware of for future code maintenance. [1]

Source: Package documentation
Recommendation: This update is considered safe to merge.

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