no issue
- we were still referencing `master` here, whereas we've since switched
to `main`
- this commit updates the workflow to trigger the notification if it
fails on `main`
- also enables testing on `v4.*` branches
refs 84bfbae282
- if Admin is pushed to after Ghost, the canary build won't contain
Admin changes, so we need to trigger another canary build
- this commit adds a final step to the CI flow that will trigger the
Ghost canary build if all steps were successful
- we don't need to run linting twice as we do currently in the Firefox &
Chrome jobs
- also pins the Node version to 12.18.0 so we can be sure what Node
version we're running with
- we recently had an issue where a dependency update broke the
release process because it was building in production mode, but our CI
never ran in this mode and we missed it
- this commit adds a test to run in prod mode so hopefully we catch it
next time
no issue
- using the setup-node action is currently failing because of an
upstream issue - https://github.com/nodejs/node/issues/32683
- this commit switches to using a Docker container
