Security issue npm audit

[SSANSH]

is it possible to bump dependencies to the project maildev? npm audit command raise several critical issue.

xmlhttprequest-ssl 11 vulnerabilities (4 moderate, 1 high, 6 critical)
This is a dependency of the project

└─┬ maildev@1.1.0 └─┬ socket.io@2.2.0 └─┬ socket.io-client@2.2.0 └─┬ engine.io-client@3.3.2 └── xmlhttprequest-ssl@1.5.5

[soulteary]

Thanks for your feedback @SSANSH
This issue will be done in the next release, please pay attention to related issues

ref: #379 #378