[Snyk] Security upgrade express from 4.17.0 to 4.21.1

[lostinauth0]

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
	Cross-site Scripting (XSS) SNYK-JS-COOKIE-8163060	601

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🦉 Cross-site Scripting (XSS)

[codeclimate]

Code Climate has analyzed commit f68b36c and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 89.9% (0.0% change).

View more on Code Climate.