shelljs dependancy high vulnerability reported by npm audit

[swannypp]

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npm audit is notifying of a high vulnerability with shelljs. Looking at the diff, it looks like a relatively straight forward change to bump the version of shelljs from 0.8.3 to 0.8.5 in package.json

[redevill]

While in there - glob-parent@3.1.0 is also flagging a high vulnerability
Needs to goto 5.1.2