[Snyk] Security upgrade com.thoughtworks.xstream:xstream from 1.4.5 to 1.4.21

[snyk-io]

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

Snyk changed the following file(s):

• webgoat-lessons/vulnerable-components/pom.xml

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	Deserialization of Untrusted Data SNYK-JAVA-COMTHOUGHTWORKSXSTREAM-8352924	227	com.thoughtworks.xstream:xstream: 1.4.5 -> 1.4.21 No Path Found Proof of Concept

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[snyk-io]

⛔ Snyk checks have failed. 1064 issues have been found so far.

Icon	Severity	Issues
	Critical	42
	High	362
	Medium	516
	Low	144

⛔ security/snyk check is complete. 959 issues have been found. (View Details)

⛔ license/snyk check is complete. 105 issues have been found. (View Details)

✅ code/snyk check is complete. No issues have been found. (View Details)