This patch:
- starts publishing canary NPM package at 00:10AM UTC
- canary version is published from default (`master`) branch and is
named with a date. E.g. for a version published on Feb 5, 2021, the
version would be `1.8.0-alpha-feb-5-2021`
- versions from release branches are still published on every commit and have the
regular commit timestamp suffix
Some googling showed that CI systems might not be capable of
handling too much STDOUT that `tar -v` produces.
([source](https://stackoverflow.com/questions/37540792/jenkins-script-tar-write-error)).
This patch:
- removes verbose flag from tar to reduce output
- sets `+x` to get some logging for the script
- silences zip output
