Security vulnerability downstream

routing-controllers@0.7.7 > class-validator@0.8.5 > validator@9.2.0

```sh
✗ Low severity vulnerability found on validator@9.2.0
- desc: Regular Expression Denial of Service (ReDoS)
- info: https://snyk.io/vuln/npm:validator:20180218
- from: @...@0.0.1 > routing-controllers@0.7.7 > class-validator@0.8.5 > validator@9.2.0
No direct dependency upgrade can address this issue.
```