[Snyk] Upgrade pm2 from 5.3.1 to 5.4.1

[ctizen]

This PR was automatically created by Snyk using the credentials of a real user.


Snyk has created this PR to upgrade pm2 from 5.3.1 to 5.4.1.

: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 2 versions ahead of your current version.

• The recommended version was released on a month ago.

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[!IMPORTANT]

• Check the changes in this PR to ensure they won't cause issues with your project.
• This PR was automatically created by Snyk using the credentials of a real user.

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