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

[mariohmol]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • example/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	696/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-ANSIHTML-1296849	Yes	Proof of Concept
	586/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.3	Regular Expression Denial of Service (ReDoS) SNYK-JS-GLOBPARENT-1016905	Yes	Proof of Concept
	681/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.2	Command Injection SNYK-JS-LODASHTEMPLATE-1088054	Yes	Proof of Concept
	479/1000 Why? Has a fix available, CVSS 5.3	Improper Input Validation SNYK-JS-POSTCSS-5926692	Yes	No Known Exploit
	589/1000 Why? Has a fix available, CVSS 7.5	Prototype Pollution SNYK-JS-UNSETVALUE-2400660	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Check the changes in this PR to ensure they won't cause issues with your project.

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Regular Expression Denial of Service (ReDoS) 🦉 Improper Input Validation 🦉 Prototype Pollution