Dependency Scanning now supports npm lock files v2

Release notes

https://docs.gitlab.com/ee/user/application_security/dependency_scanning/#supported-languages-and-package-managers

Users with node projects using npm 7's lock file version 2 are now supported. Previously Dependency Scanning threw the following error:[FATA] [Gemnasium] [2020-10-29T19:02:20Z] ▶ Wrong file format version.