core: class-validator dependency contains a critical vulnerability

[SuperITMan]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[X] Bug report  
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead see https://github.com/NationalBankBelgium/stark/blob/master/CONTRIBUTING.md#got-a-question-or-problem

Current behavior

The class-validator dependency v0.13.x contains a critical vulnerability: GHSA-fj58-h2fr-3pp2

Expected behavior

The class-validator dependency must be upgraded.