[Snyk] Security upgrade react-scripts from 4.0.3 to 5.0.0

[mariache]

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

Snyk changed the following file(s):

• client/package.json
• client/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Prototype Pollution SNYK-JS-JSYAML-13961110	631

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