[Snyk] Security upgrade pm2 from 4.3.1 to 4.5.3

[patrickpierson]

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

Changes included in this PR

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

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	681/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 7.2	Command Injection SNYK-JS-VIZION-565230	No	Proof of Concept

(*) 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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