[Snyk] Upgrade react-scripts from 3.0.1 to 3.4.4

[snyk-bot]

Snyk has created this PR to upgrade react-scripts from 3.0.1 to 3.4.4.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 15 versions ahead of your current version.
• The recommended version was released 2 years ago, on 2020-10-20.

The recommended version fixes:

Severity	Issue	PriorityScore (*)	Exploit Maturity
	Arbitrary Code Injection SNYK-JS-SERIALIZEJAVASCRIPT-570062	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Cross-site Scripting (XSS) SNYK-JS-SERIALIZEJAVASCRIPT-536840	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Prototype Pollution SNYK-JS-NODEFORGE-598677	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Arbitrary Code Execution SNYK-JS-HANDLEBARS-534478	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Denial of Service (DoS) SNYK-JS-HANDLEBARS-480388	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Prototype Pollution SNYK-JS-HANDLEBARS-469063	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Remote Code Execution (RCE) SNYK-JS-HANDLEBARS-1056767	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Arbitrary Code Execution SNYK-JS-ESLINTUTILS-460220	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Prototype Pollution SNYK-JS-YARGSPARSER-560381	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Prototype Pollution SNYK-JS-YARGSPARSER-560381	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Regular Expression Denial of Service (ReDoS) SNYK-JS-UGLIFYJS-1727251	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Regular Expression Denial of Service (ReDoS) SNYK-JS-UGLIFYJS-1727251	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Denial of Service (DoS) SNYK-JS-SOCKJS-575261	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Command Injection SNYK-JS-NODENOTIFIER-1035794	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Regular Expression Denial of Service (ReDoS) SNYK-JS-ISSVG-1243891	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Regular Expression Denial of Service (ReDoS) SNYK-JS-ISSVG-1085627	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Prototype Pollution SNYK-JS-HANDLEBARS-567742	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept
	Prototype Pollution SNYK-JS-HANDLEBARS-534988	492/1000 Why? Proof of Concept exploit, CVSS 7.7	No Known Exploit
	Prototype Pollution SNYK-JS-HANDLEBARS-1279029	492/1000 Why? Proof of Concept exploit, CVSS 7.7	Proof of Concept

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

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