v3.0.0

!!! Breaking Changes !!!

• drop node 8 by @vreynolds in #188

Maintenance

• Add Stalebot by @JamieDanielson in #187
• Change maintenance badge to maintained by @JamieDanielson in #186
• Bump tmpl from 1.0.4 to 1.0.5 by @dependabot in #185
• Bump prettier from 2.4.0 to 2.4.1 by @dependabot in #184

Full Changelog: v2.3.3...v3.0.0