[Snyk] Security upgrade express from 4.12.4 to 4.21.2

[Omrisnyk]

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

Snyk changed the following file(s):

• package.json

⚠️ Warning

Failed to update the package-lock.json, please update manually before merging.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Regular Expression Denial of Service (ReDoS) SNYK-JS-PATHTOREGEXP-8482416	721

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Regular Expression Denial of Service (ReDoS)

[Omrisnyk]

⛔ Snyk checks have failed. 116 issues have been found so far.

Icon	Severity	Issues
	Critical	3
	High	52
	Medium	52
	Low	9

⛔ security/snyk check is complete. 116 issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)