[Snyk] Security upgrade z-schema from 3.25.1 to 4.2.4

[alexkravets]

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

Snyk changed the following file(s):

• package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Validation of Specified Type of Input SNYK-JS-VALIDATOR-13395830	658

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