Bump @actions/core from 1.5.0 to 1.6.0
Ubuntu 16.04 runner deprecated
Bump ansi-regex from 5.0.0 to 5.0.1
Bump tmpl from 1.0.4 to 1.0.5
Fix Dependabot labels
Bump @actions/core from 1.4.0 to 1.5.0
Add link to GitHub documentation