[Snyk] Security upgrade nodemailer from 4.7.0 to 7.0.7

[atian25]

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
	Interpretation Conflict SNYK-JS-NODEMAILER-13378253	738

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