* build(ci): test against Node 14
* refactor: replace Object.assign with object spread
* test: replace @nlv8/signun with @newrelic/native-metrics for Node 14 support
* test: re-enable workspace tests
* test(workspaces): use snappy instead of ref-napi
* test(workspaces): use sleep instead of ffi-napi
* test: derive test electron version/range from package.json
* test: handle Electron version location on macOS
* build(deps-dev): upgrade electron to ^10.0.0
* build: run npm audit fix
* test: emit stderr when npm/yarn fail
* chore: enable GitHub Dependabot on the repo
David Sanders
Samuel Attard
Mark Lee