feat(ci): add epic/* release workflow and rename master to trunk

[dkoo]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

1. Adds a new epic/* release workflow for creating release builds that we can use for beta testing and other QA purposes. This workflow is similar to alpha and hotfix/* workflows, but kind of in between them.
2. Renames the master branch to trunk.

How to test the changes in this Pull Request:

Follow testing instructions in Automattic/newspack-plugin#2895, but for this repo.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

[chickenn00dle]

Tested and works as expected!

Found another case of master to be updated in the codebase though:

republication-tracker-tool/includes/class-article-settings.php

Line 163 in dd29a26

echo '<p>The Republication sharing widget on this post is programatically disabled through the <code>hide_republication_widget</code> filter. <a href="/Automattic/republication-tracker-tool/blob/master/docs/removing-republish-button-from-categories.md" target="_blank">Read more about this filter</a>.</p>';

Gonna also give this a thumbs up.

Another aside, I created and pushed an epic branch not based on your PR branch initially and want to delete it but it is protected. Any advice on how to do that 😅

[dkoo]

Another aside, I created and pushed an epic branch not based on your PR branch initially and want to delete it but it is protected. Any advice on how to do that 😅

Whoops, I forgot to enable branch deletion for the epics. We should now be able to delete those branches.

[matticbot]

🎉 This PR is included in version 1.6.0-alpha.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[matticbot]

🎉 This PR is included in version 1.6.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀