ci: consume org workflows

[joergmann]

First Draft

Open issues

• adapt changelog to unreleased format
• use next version workflow
• lint check renaming
• test.yml executed rollup:off and rollup:on tests, whereas release.yml executed only rollup:on tests -> on purpose?

[daogrady]

test.yml executed rollup:off and rollup:on tests, whereas release.yml executed only rollup:on tests -> on purpose?

Yes, we test the types both in bundled, as well as in unbundled state. The former will be released, the latter is what we see during development. So both should work properly.
When we release, we only want the bundled version, so there we only have rollup:on