[Snyk] Fix for 4 vulnerabilities

[dalexhd]

Snyk has created this PR to fix 4 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• docs/package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Asymmetric Resource Consumption (Amplification) SNYK-JS-BODYPARSER-7926860	696
	Cross-site Scripting SNYK-JS-EXPRESS-7926867	541
	Cross-site Scripting SNYK-JS-SEND-7926862	391
	Cross-site Scripting SNYK-JS-SERVESTATIC-7926865	391

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• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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[github-actions]

Great PR! Please pay attention to the following items before merging:

Files matching docs/**:

• Do you linted the code?
• Have you added the new version on metadata.js?

This is an automatically generated QA checklist based on modified files.