[Snyk] Security upgrade ethereumjs-util from 5.2.0 to 5.2.1

[kelvinwijaya]

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

Snyk changed the following file(s):

• package.json
• package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Validation of Integrity Check Value SNYK-JS-SECP256K1-8237220	828

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[guardrails]

⚠️ We detected 1 security issue in this pull request:

Vulnerable Libraries (1)

Severity	Details
Informational	pkg:npm/[email protected] upgrade to: > 5.2.1

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